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add descriptive comments to pretty much all functions and major 

variables that don't have them, plus a few miscellaneous minor fixes


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3237 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
master
David Lawrence Ramsey 2005-12-08 07:09:08 +00:00
parent 034b994eb5
commit 6d6a36c647
14 changed files with 672 additions and 350 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
ChangeLog
View File

@ -1,5 +1,7 @@
CVS code -
- General:
- Miscellaneous comment fixes. (DLR)
- More int -> bool conversions. (DLR)
- Add the ability to scroll up or down single lines without
scrolling the cursor, via Meta-- and Meta-+. Note that this
is disabled when NANO_SMALL is defined. New functions
@ -170,6 +172,9 @@ CVS code -
(DLR)
- nano.h:
- Readd MIN_EDITOR_COLS #define, set to 4. (DLR)
- proto.h:
- Remove now-unused externs for currslen, shortcut_list,
fileinfo, syntaxfile_regexp, and synfilematches. (DLR)
- prompt.c:
do_statusbar_input()
- Fix misplaced break when handling NANO_VERBATIM_KEY. (DLR)
@ -183,12 +188,17 @@ CVS code -
do_rcfile()
- Remove unneeded assert. (DLR)
- search.c:
search_abort()
- Rename to search_replace_abort(). (DLR)
findnextstr()
- Remove parameter can_display_wrap, as it's always set to TRUE
now, and rename parameter wholeword to whole_word, for
consistency. (DLR)
- Only include the whole_word parameter when DISABLE_SPELLER
isn't defined, as it's only used then. (DLR)
replace_abort()
- Replace with search_replace_abort(), since it does the same
things that this function does. (DLR)
do_replace_loop()
- Change order of parameters to more closely match those of
findnextstr(), and rename parameter wholewords to whole_word,
@ -244,6 +254,8 @@ CVS code -
- Fix test so that we scroll through the line in 8-character
chunks when COLS is greater than 8, not when COLS is greater
than 9. (DLR)
remove_magicline()
- Add assert. (DLR)
- winio.c:
nanoget_repaint()
- Rename parameter inputbuf to buf, for consistency. (DLR)

2
src/cut.c
View File

@ -31,6 +31,8 @@ static bool keep_cutbuffer = FALSE;
static filestruct *cutbottom = NULL;
/* Pointer to the end of the cutbuffer. */
/* Indicate that we should no longer keep the contents of the
* cutbuffer. */
void cutbuffer_reset(void)
{
keep_cutbuffer = FALSE;

17
src/files.c
View File

@ -336,6 +336,8 @@ filestruct *read_line(char *buf, filestruct *prevnode, bool
return fileptr;
}
/* Read an open file into the current buffer. f should be set to the
* open file, and filename should be set to the name of the file. */
void read_file(FILE *f, const char *filename)
{
size_t num_lines = 0;
@ -665,6 +667,9 @@ char *get_next_filename(const char *name, const char *suffix)
return buf;
}
/* Insert a file into a new buffer if the MULTIBUFFER flag is set, or
* into the current buffer if it isn't. If execute is TRUE, insert the
* output of an executed command instead of a file. */
void do_insertfile(
#ifndef NANO_TINY
bool execute
@ -871,6 +876,9 @@ void do_insertfile(
free(ans);
}
/* Insert a file into a new buffer or the current buffer, depending on
* whether the MULTIBUFFER flag is set. If we're in view mode, only
* allow inserting a file into a new buffer. */
void do_insertfile_void(void)
{
#ifdef ENABLE_MULTIBUFFER
@ -1687,6 +1695,10 @@ int write_marked_file(const char *name, FILE *f_open, bool tmp,
}
#endif /* !NANO_TINY */
/* Write the current file to disk. If the mark is on, write the current
* marked selection to disk. If exiting is TRUE, write the file to disk
* regardless of whether the mark is on, and without prompting if the
* TEMP_FILE flag is set. */
int do_writeout(bool exiting)
{
int i, retval = 0;
@ -1854,6 +1866,8 @@ int do_writeout(bool exiting)
return retval;
}
/* Write the current file to disk. If the mark is on, write the current
* marked selection to disk. */
void do_writeout_void(void)
{
do_writeout(FALSE);
@ -2353,6 +2367,9 @@ void load_history(void)
}
}
/* Write the lines of a history list, starting with the line at h, to
* the open file at hist. Return TRUE if the write succeeded, and FALSE
* otherwise. */
bool writehist(FILE *hist, filestruct *h)
{
filestruct *p;

360
src/global.c
View File

@ -25,132 +25,180 @@
/* Global variables */
#ifndef DISABLE_WRAPJUSTIFY
ssize_t fill = 0; /* The column where we will wrap
* lines. */
ssize_t fill = 0;
/* The column where we will wrap lines. */
ssize_t wrap_at = -CHARS_FROM_EOL;
/* The position where we will wrap
* lines. fill is equal to this if it's
* greater than zero, and equal to
* (COLS + this) if it isn't. */
/* The position where we will wrap lines. fill is equal to this
* if it's greater than zero, and equal to (COLS + this) if it
* isn't. */
#endif
char *last_search = NULL; /* Last string we searched for */
char *last_replace = NULL; /* Last replacement string */
char *last_search = NULL;
/* The last string we searched for. */
char *last_replace = NULL;
/* The last replacement string we searched for. */
long flags = 0; /* Our flag containing many options */
WINDOW *topwin; /* Top subwindow */
WINDOW *edit; /* The file portion of the editor */
WINDOW *bottomwin; /* Bottom subwindow */
long flags = 0;
/* Our flag containing the states of all global options. */
WINDOW *topwin;
/* The top portion of the window, where we display the version
* number of nano, the name of the current file, and whether the
* current file has been modified. */
WINDOW *edit;
/* The middle portion of the window, i.e, the edit window, where
* we display the current file we're editing. */
WINDOW *bottomwin;
/* The bottom portion of the window, where we display statusbar
* messages, the statusbar prompt, and a list of shortcuts. */
int editwinrows = 0;
/* How many rows does the edit window take up? */
int editwinrows = 0; /* How many rows long is the edit
window? */
filestruct *cutbuffer = NULL; /* A place to store cut text */
filestruct *cutbuffer = NULL;
/* The buffer where we store cut text. */
#ifndef DISABLE_JUSTIFY
filestruct *jusbuffer = NULL; /* A place to store unjustified text */
filestruct *jusbuffer = NULL;
/* The buffer where we store unjustified text. */
#endif
partition *filepart = NULL; /* A place to store a portion of the
file struct */
partition *filepart = NULL;
/* The partition where we store a portion of the current
* file. */
openfilestruct *openfile = NULL;
/* The list of open file buffers */
/* The list of all open file buffers. */
#if !defined(NANO_TINY) && defined(ENABLE_NANORC)
char *whitespace = NULL; /* Characters used when displaying
the first characters of tabs and
spaces. */
int whitespace_len[2]; /* The length of the characters. */
char *whitespace = NULL;
/* The characters used when displaying the first characters of
* tabs and spaces. */
int whitespace_len[2];
/* The length of these characters. */
#endif
#ifndef DISABLE_JUSTIFY
char *punct = NULL; /* Closing punctuation that can end
sentences. */
char *brackets = NULL; /* Closing brackets that can follow
closing punctuation and can end
sentences. */
char *quotestr = NULL; /* Quote string. The default value is
set in main(). */
char *punct = NULL;
/* The closing punctuation that can end sentences. */
char *brackets = NULL;
/* The closing brackets that can follow closing punctuation and
* can end sentences. */
char *quotestr = NULL;
/* The quoting string. The default value is set in main(). */
#ifdef HAVE_REGEX_H
regex_t quotereg; /* Compiled quotestr regular expression. */
int quoterc; /* Did it compile? */
char *quoteerr = NULL; /* The error message. */
regex_t quotereg;
/* The compiled regular expression from the quoting string. */
int quoterc;
/* Whether it actually compiled. */
char *quoteerr = NULL;
/* The error message, if it didn't. */
#else
size_t quotelen; /* strlen(quotestr) */
size_t quotelen;
/* The length of the quoting string in bytes. */
#endif
#endif
char *answer = NULL;
/* The answer string used in the statusbar prompt. */
ssize_t tabsize = -1;
/* The width of a tab in spaces. The default value is set in
* main(). */
#ifndef NANO_TINY
char *backup_dir = NULL; /* Backup directory. */
char *backup_dir = NULL;
/* The directory where we store backup files. */
#endif
char *answer = NULL; /* The answer string for statusbar
* questions. */
ssize_t tabsize = -1; /* Our internal tabsize variable. The
default value is set in main(). */
#ifndef DISABLE_OPERATINGDIR
char *operating_dir = NULL; /* Operating directory, which we can't */
char *full_operating_dir = NULL;/* go higher than */
char *operating_dir = NULL;
/* The relative path to the operating directory, which we can't
* move outside of. */
char *full_operating_dir = NULL;
/* The full path to it. */
#endif
#ifndef DISABLE_SPELLER
char *alt_speller = NULL; /* Alternative spell command */
char *alt_speller = NULL;
/* The command to use for the alternate spell checker. */
#endif
shortcut *main_list = NULL;
/* The main shortcut list. */
shortcut *whereis_list = NULL;
/* The "Search" shortcut list. */
shortcut *replace_list = NULL;
shortcut *replace_list_2 = NULL; /* 2nd half of replace dialog */
/* The "Search (to replace)" shortcut list. */
shortcut *replace_list_2 = NULL;
/* The "Replace with" shortcut list. */
shortcut *gotoline_list = NULL;
/* The "Enter line number, column number" shortcut list. */
shortcut *writefile_list = NULL;
/* The "File Name to Write" shortcut list. */
shortcut *insertfile_list = NULL;
/* The "File to insert" shortcut list. */
#ifndef NANO_TINY
shortcut *extcmd_list = NULL;
/* The "Command to execute" shortcut list. */
#endif
#ifndef DISABLE_HELP
shortcut *help_list = NULL;
/* The help text shortcut list. */
#endif
#ifndef DISABLE_SPELLER
shortcut *spell_list = NULL;
#endif
#ifndef NANO_TINY
shortcut *extcmd_list = NULL;
/* The internal spell checker shortcut list. */
#endif
#ifndef DISABLE_BROWSER
shortcut *browser_list = NULL;
/* The file browser shortcut list. */
shortcut *gotodir_list = NULL;
/* The "Go To Directory" shortcut list. */
#endif
#ifdef ENABLE_COLOR
syntaxtype *syntaxes = NULL;
/* The global list of color syntaxes. */
char *syntaxstr = NULL;
/* The color syntax name specified on the command line. */
#endif
const shortcut *currshortcut; /* Current shortcut list we're using */
const shortcut *currshortcut;
/* The current shortcut list we're using. */
#ifndef NANO_TINY
toggle *toggles = NULL;
/* The global toggle list. */
#endif
#ifndef NANO_TINY
filestruct *search_history = NULL;
/* The search string history list. */
filestruct *searchage = NULL;
/* The top of the search string history list. */
filestruct *searchbot = NULL;
/* The bottom of the search string history list. */
filestruct *replace_history = NULL;
/* The replace string history list. */
filestruct *replaceage = NULL;
/* The top of the replace string history list. */
filestruct *replacebot = NULL;
/* The bottom of the replace string history list. */
#endif
/* Regular expressions */
#ifdef HAVE_REGEX_H
regex_t search_regexp; /* Global to store compiled search regexp */
regmatch_t regmatches[10]; /* Match positions for parenthetical
subexpressions, max of 10 */
regex_t search_regexp;
/* The compiled regular expression to use in searches. */
regmatch_t regmatches[10];
/* The match positions for parenthetical subexpressions, 10
* maximum, used in regular expression searches. */
#endif
bool curses_ended = FALSE; /* Indicates to statusbar() to simply
* write to stderr, since endwin() has
* ended curses mode. */
bool curses_ended = FALSE;
/* Whether endwin() has ended curses mode and statusbar()
* should hence write to stderr instead of displaying on the
* statusbar. */
char *homedir = NULL; /* $HOME or from /etc/passwd. */
char *homedir = NULL;
/* The user's home directory, from $HOME or
* /etc/passwd. */
/* Return the number of entries in the shortcut list s. */
size_t length_of_list(const shortcut *s)
{
size_t i = 0;
@ -194,6 +242,8 @@ void sc_init_one(shortcut **shortcutage, int ctrlval, const char *desc,
s->next = NULL;
}
/* Initialize all shortcut lists. If unjustify is TRUE, replace the
* Uncut shortcut in the main shortcut list with UnJustify. */
void shortcut_init(bool unjustify)
{
const char *get_help_msg = N_("Get Help");
@ -365,7 +415,7 @@ void shortcut_init(bool unjustify)
free_shortcutage(&main_list);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_HELP_KEY, get_help_msg,
IFHELP(nano_help_msg, NANO_NO_KEY), NANO_HELP_FKEY,
NANO_NO_KEY, VIEW,
@ -376,7 +426,7 @@ void shortcut_init(bool unjustify)
#endif
);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_EXIT_KEY,
#ifdef ENABLE_MULTIBUFFER
openfile != NULL && openfile != openfile->next ?
@ -385,12 +435,12 @@ void shortcut_init(bool unjustify)
exit_msg, IFHELP(nano_exit_msg, NANO_NO_KEY), NANO_EXIT_FKEY,
NANO_NO_KEY, VIEW, do_exit);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_WRITEOUT_KEY, N_("WriteOut"),
IFHELP(nano_writeout_msg, NANO_NO_KEY), NANO_WRITEOUT_FKEY,
NANO_NO_KEY, NOVIEW, do_writeout_void);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_JUSTIFY_KEY, N_("Justify"),
IFHELP(nano_justify_msg, NANO_NO_KEY),
NANO_JUSTIFY_FKEY, NANO_NO_KEY, NOVIEW,
@ -402,11 +452,12 @@ void shortcut_init(bool unjustify)
);
/* We allow inserting files in view mode if multibuffers are
* available, so that we can view multiple files. */
/* If we're using restricted mode, inserting files is disabled since
* it allows reading from or writing to files not specified on the
* command line. */
/* Translators: try to keep this string under 10 characters long */
* available, so that we can view multiple files. If we're using
* restricted mode, inserting files is disabled, since it allows
* reading from or writing to files not specified on the command
* line. */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_INSERTFILE_KEY, N_("Read File"),
IFHELP(nano_insert_msg, NANO_NO_KEY), NANO_INSERTFILE_FKEY,
NANO_NO_KEY,
@ -418,38 +469,38 @@ void shortcut_init(bool unjustify)
, !ISSET(RESTRICTED) ? do_insertfile_void :
nano_disabled_msg);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_WHEREIS_KEY, N_("Where Is"),
IFHELP(nano_whereis_msg, NANO_NO_KEY), NANO_WHEREIS_FKEY,
NANO_NO_KEY, VIEW, do_search);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_PREVPAGE_KEY, prev_page_msg,
IFHELP(nano_prevpage_msg, NANO_NO_KEY), NANO_PREVPAGE_FKEY,
NANO_NO_KEY, VIEW, do_page_up);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_NEXTPAGE_KEY, next_page_msg,
IFHELP(nano_nextpage_msg, NANO_NO_KEY), NANO_NEXTPAGE_FKEY,
NANO_NO_KEY, VIEW, do_page_down);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_CUT_KEY, N_("Cut Text"),
IFHELP(nano_cut_msg, NANO_NO_KEY), NANO_CUT_FKEY,
NANO_NO_KEY, NOVIEW, do_cut_text);
if (unjustify)
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_UNJUSTIFY_KEY, N_("UnJustify"),
IFHELP(NULL, NANO_NO_KEY), NANO_UNJUSTIFY_FKEY,
NANO_NO_KEY, NOVIEW, NULL);
else
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_UNCUT_KEY, N_("UnCut Txt"),
IFHELP(nano_uncut_msg, NANO_NO_KEY), NANO_UNCUT_FKEY,
NANO_NO_KEY, NOVIEW, do_uncut_text);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_CURSORPOS_KEY, N_("Cur Pos"),
IFHELP(nano_cursorpos_msg, NANO_NO_KEY), NANO_CURSORPOS_FKEY,
NANO_NO_KEY, VIEW, do_cursorpos_void);
@ -457,7 +508,7 @@ void shortcut_init(bool unjustify)
/* If we're using restricted mode, spell checking is disabled
* because it allows reading from or writing to files not specified
* on the command line. */
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_SPELL_KEY, N_("To Spell"),
IFHELP(nano_spell_msg, NANO_NO_KEY), NANO_SPELL_FKEY,
NANO_NO_KEY, NOVIEW,
@ -552,12 +603,12 @@ void shortcut_init(bool unjustify)
#endif
#ifndef DISABLE_JUSTIFY
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_NO_KEY, beg_of_par_msg,
IFHELP(nano_parabegin_msg, NANO_PARABEGIN_ALTKEY1), NANO_NO_KEY,
NANO_PARABEGIN_ALTKEY2, VIEW, do_para_begin_void);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_NO_KEY, end_of_par_msg,
IFHELP(nano_paraend_msg, NANO_PARAEND_ALTKEY1), NANO_NO_KEY,
NANO_PARAEND_ALTKEY2, VIEW, do_para_end_void);
@ -578,14 +629,14 @@ void shortcut_init(bool unjustify)
NANO_NO_KEY, NOVIEW, do_verbatim_input);
#ifndef NANO_TINY
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_NO_KEY, cut_till_end_msg,
IFHELP(nano_cut_till_end_msg, NANO_CUTTILLEND_ALTKEY),
NANO_NO_KEY, NANO_NO_KEY, NOVIEW, do_cut_till_end);
#endif
#ifndef DISABLE_JUSTIFY
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&main_list, NANO_NO_KEY, fulljstify_msg,
IFHELP(nano_fulljustify_msg, NANO_FULLJUSTIFY_ALTKEY),
NANO_NO_KEY, NANO_NO_KEY, NOVIEW, do_full_justify);
@ -609,76 +660,76 @@ void shortcut_init(bool unjustify)
#endif
);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_CANCEL_KEY, cancel_msg,
IFHELP(nano_cancel_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_FIRSTLINE_KEY, first_line_msg,
IFHELP(nano_firstline_msg, NANO_NO_KEY), NANO_FIRSTLINE_FKEY,
NANO_NO_KEY, VIEW, do_first_line);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_LASTLINE_KEY, last_line_msg,
IFHELP(nano_lastline_msg, NANO_NO_KEY), NANO_LASTLINE_FKEY,
NANO_NO_KEY, VIEW, do_last_line);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_TOOTHERSEARCH_KEY, replace_msg,
IFHELP(nano_replace_msg, NANO_NO_KEY), NANO_REPLACE_FKEY,
NANO_NO_KEY, VIEW, NULL);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_TOGOTOLINE_KEY, go_to_line_msg,
IFHELP(nano_gotoline_msg, NANO_NO_KEY), NANO_GOTOLINE_FKEY,
NANO_NO_KEY, VIEW, NULL);
#ifndef DISABLE_JUSTIFY
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_PARABEGIN_KEY, beg_of_par_msg,
IFHELP(nano_parabegin_msg, NANO_PARABEGIN_ALTKEY1), NANO_NO_KEY,
NANO_PARABEGIN_ALTKEY2, VIEW, do_para_begin_void);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_PARAEND_KEY, end_of_par_msg,
IFHELP(nano_paraend_msg, NANO_PARAEND_ALTKEY1), NANO_NO_KEY,
NANO_PARAEND_ALTKEY2, VIEW, do_para_end_void);
#endif
#ifndef NANO_TINY
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_NO_KEY, case_sens_msg,
IFHELP(nano_case_msg, TOGGLE_CASE_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_NO_KEY, backwards_msg,
IFHELP(nano_reverse_msg, TOGGLE_BACKWARDS_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
#endif
#ifdef HAVE_REGEX_H
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_NO_KEY, regexp_msg,
IFHELP(nano_regexp_msg, NANO_REGEXP_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
#endif
#ifndef NANO_TINY
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_PREVLINE_KEY, history_msg,
IFHELP(nano_history_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_CUTTILLEND_KEY, cut_till_end_msg,
IFHELP(nano_cut_till_end_msg, NANO_CUTTILLEND_ALTKEY),
NANO_NO_KEY, NANO_NO_KEY, NOVIEW, do_cut_till_end);
#endif
#ifndef DISABLE_JUSTIFY
/* Translators: try to keep this string under 10 characters long */
/* Translators: try to keep this string under 10 characters long. */
sc_init_one(&whereis_list, NANO_FULLJUSTIFY_KEY, fulljstify_msg,
IFHELP(nano_fulljustify_msg, NANO_FULLJUSTIFY_ALTKEY),
NANO_NO_KEY, NANO_NO_KEY, NOVIEW, do_full_justify);
@ -708,7 +759,7 @@ void shortcut_init(bool unjustify)
IFHELP(nano_lastline_msg, NANO_NO_KEY), NANO_LASTLINE_FKEY,
NANO_NO_KEY, VIEW, do_last_line);
/* Translators: try to keep this string under 12 characters long */
/* Translators: try to keep this string under 12 characters long. */
sc_init_one(&replace_list, NANO_TOOTHERSEARCH_KEY, N_("No Replace"),
IFHELP(nano_whereis_msg, NANO_NO_KEY), NANO_REPLACE_FKEY,
NANO_NO_KEY, VIEW, NULL);
@ -797,34 +848,6 @@ void shortcut_init(bool unjustify)
N_("Go To Text"), IFHELP(nano_whereis_msg, NANO_NO_KEY),
NANO_NO_KEY, NANO_NO_KEY, VIEW, NULL);
#ifndef DISABLE_HELP
free_shortcutage(&help_list);
sc_init_one(&help_list, NANO_REFRESH_KEY, refresh_msg,
IFHELP(nano_refresh_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_EXIT_KEY, exit_msg,
IFHELP(nano_exit_msg, NANO_NO_KEY), NANO_EXIT_FKEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_PREVPAGE_KEY, prev_page_msg,
IFHELP(nano_prevpage_msg, NANO_NO_KEY), NANO_PREVPAGE_FKEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_NEXTPAGE_KEY, next_page_msg,
IFHELP(nano_nextpage_msg, NANO_NO_KEY), NANO_NEXTPAGE_FKEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_PREVLINE_KEY, N_("Prev Line"),
IFHELP(nano_prevline_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_NEXTLINE_KEY, N_("Next Line"),
IFHELP(nano_nextline_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
#endif
free_shortcutage(&writefile_list);
sc_init_one(&writefile_list, NANO_HELP_KEY, get_help_msg,
@ -844,7 +867,8 @@ void shortcut_init(bool unjustify)
#ifndef DISABLE_BROWSER
/* If we're using restricted mode, the file browser is disabled.
* It's useless since inserting files is disabled. */
/* Translators: try to keep this string under 16 characters long */
/* Translators: try to keep this string under 16 characters long. */
if (!ISSET(RESTRICTED))
sc_init_one(&writefile_list, NANO_TOFILES_KEY, to_files_msg,
IFHELP(nano_tofiles_msg, NANO_NO_KEY), NANO_NO_KEY,
@ -858,33 +882,34 @@ void shortcut_init(bool unjustify)
* and fourth are disabled because they allow writing to files not
* specified on the command line, and the fifth is useless since
* backups are disabled. */
/* Translators: try to keep this string under 16 characters long */
/* Translators: try to keep this string under 16 characters long. */
if (!ISSET(RESTRICTED))
sc_init_one(&writefile_list, NANO_NO_KEY, N_("DOS Format"),
IFHELP(nano_dos_msg, TOGGLE_DOS_KEY), NANO_NO_KEY,
NANO_NO_KEY, NOVIEW, NULL);
/* Translators: try to keep this string under 16 characters long */
/* Translators: try to keep this string under 16 characters long. */
if (!ISSET(RESTRICTED))
sc_init_one(&writefile_list, NANO_NO_KEY, N_("Mac Format"),
IFHELP(nano_mac_msg, TOGGLE_MAC_KEY), NANO_NO_KEY,
NANO_NO_KEY, NOVIEW, NULL);
#endif
/* Translators: try to keep this string under 16 characters long */
/* Translators: try to keep this string under 16 characters long. */
if (!ISSET(RESTRICTED))
sc_init_one(&writefile_list, NANO_NO_KEY, N_("Append"),
IFHELP(nano_append_msg, NANO_APPEND_KEY), NANO_NO_KEY,
NANO_NO_KEY, NOVIEW, NULL);
/* Translators: try to keep this string under 16 characters long */
/* Translators: try to keep this string under 16 characters long. */
if (!ISSET(RESTRICTED))
sc_init_one(&writefile_list, NANO_NO_KEY, N_("Prepend"),
IFHELP(nano_prepend_msg, NANO_PREPEND_KEY), NANO_NO_KEY,
NANO_NO_KEY, NOVIEW, NULL);
#ifndef NANO_TINY
/* Translators: try to keep this string under 16 characters long */
/* Translators: try to keep this string under 16 characters long. */
if (!ISSET(RESTRICTED))
sc_init_one(&writefile_list, NANO_NO_KEY, N_("Backup File"),
IFHELP(nano_backup_msg, TOGGLE_BACKUP_KEY), NANO_NO_KEY,
@ -919,7 +944,8 @@ void shortcut_init(bool unjustify)
#ifndef NANO_TINY
/* If we're using restricted mode, command execution is disabled.
* It's useless since inserting files is disabled. */
/* Translators: try to keep this string under 22 characters long */
/* Translators: try to keep this string under 22 characters long. */
if (!ISSET(RESTRICTED))
sc_init_one(&insertfile_list, NANO_TOOTHERINSERT_KEY,
N_("Execute Command"), IFHELP(nano_execute_msg,
@ -928,7 +954,8 @@ void shortcut_init(bool unjustify)
#ifdef ENABLE_MULTIBUFFER
/* If we're using restricted mode, the multibuffer toggle is
* disabled. It's useless since inserting files is disabled. */
/* Translators: try to keep this string under 22 characters long */
/* Translators: try to keep this string under 22 characters long. */
if (!ISSET(RESTRICTED))
sc_init_one(&insertfile_list, NANO_NO_KEY, new_buffer_msg,
IFHELP(nano_multibuffer_msg, TOGGLE_MULTIBUFFER_KEY),
@ -936,24 +963,6 @@ void shortcut_init(bool unjustify)
#endif
#endif
#ifndef DISABLE_SPELLER
free_shortcutage(&spell_list);
sc_init_one(&spell_list, NANO_HELP_KEY, get_help_msg,
IFHELP(nano_help_msg, NANO_NO_KEY), NANO_HELP_FKEY,
NANO_NO_KEY, VIEW,
#ifndef DISABLE_HELP
do_help
#else
nano_disabled_msg
#endif
);
sc_init_one(&spell_list, NANO_CANCEL_KEY, cancel_msg,
IFHELP(nano_cancel_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
#endif
#ifndef NANO_TINY
free_shortcutage(&extcmd_list);
@ -982,6 +991,52 @@ void shortcut_init(bool unjustify)
#endif
#endif
#ifndef DISABLE_HELP
free_shortcutage(&help_list);
sc_init_one(&help_list, NANO_REFRESH_KEY, refresh_msg,
IFHELP(nano_refresh_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_EXIT_KEY, exit_msg,
IFHELP(nano_exit_msg, NANO_NO_KEY), NANO_EXIT_FKEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_PREVPAGE_KEY, prev_page_msg,
IFHELP(nano_prevpage_msg, NANO_NO_KEY), NANO_PREVPAGE_FKEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_NEXTPAGE_KEY, next_page_msg,
IFHELP(nano_nextpage_msg, NANO_NO_KEY), NANO_NEXTPAGE_FKEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_PREVLINE_KEY, N_("Prev Line"),
IFHELP(nano_prevline_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
sc_init_one(&help_list, NANO_NEXTLINE_KEY, N_("Next Line"),
IFHELP(nano_nextline_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
#endif
#ifndef DISABLE_SPELLER
free_shortcutage(&spell_list);
sc_init_one(&spell_list, NANO_HELP_KEY, get_help_msg,
IFHELP(nano_help_msg, NANO_NO_KEY), NANO_HELP_FKEY,
NANO_NO_KEY, VIEW,
#ifndef DISABLE_HELP
do_help
#else
nano_disabled_msg
#endif
);
sc_init_one(&spell_list, NANO_CANCEL_KEY, cancel_msg,
IFHELP(nano_cancel_msg, NANO_NO_KEY), NANO_NO_KEY,
NANO_NO_KEY, VIEW, NULL);
#endif
#ifndef DISABLE_BROWSER
free_shortcutage(&browser_list);
@ -1007,7 +1062,7 @@ void shortcut_init(bool unjustify)
IFHELP(nano_nextpage_msg, NANO_NO_KEY), NANO_NEXTPAGE_FKEY,
NANO_NO_KEY, VIEW, NULL);
/* Translators: try to keep this string under 22 characters long */
/* Translators: try to keep this string under 22 characters long. */
sc_init_one(&browser_list, NANO_GOTOLINE_KEY, N_("Go To Dir"),
IFHELP(nano_gotodir_msg, NANO_GOTOLINE_ALTKEY),
NANO_GOTOLINE_FKEY, NANO_NO_KEY, VIEW, NULL);
@ -1071,6 +1126,7 @@ void toggle_init_one(int val, const char *desc, long flag)
u->next = NULL;
}
/* Initialize the global toggle list. */
void toggle_init(void)
{
/* There is no need to reinitialize the toggles. They can't
@ -1185,15 +1241,15 @@ void thanks_for_all_the_fish(void)
free_shortcutage(&gotoline_list);
free_shortcutage(&writefile_list);
free_shortcutage(&insertfile_list);
#ifndef NANO_TINY
free_shortcutage(&extcmd_list);
#endif
#ifndef DISABLE_HELP
free_shortcutage(&help_list);
#endif
#ifndef DISABLE_SPELLER
free_shortcutage(&spell_list);
#endif
#ifndef NANO_TINY
free_shortcutage(&extcmd_list);
#endif
#ifndef DISABLE_BROWSER
free_shortcutage(&browser_list);
free_shortcutage(&gotodir_list);

52
src/move.c
View File

@ -26,6 +26,7 @@
#include <string.h>
#include <ctype.h>
/* Move to the first line of the file. */
void do_first_line(void)
{
const filestruct *current_save = openfile->current;
@ -40,6 +41,7 @@ void do_first_line(void)
edit_redraw(current_save, pww_save);
}
/* Move to the last line of the file. */
void do_last_line(void)
{
const filestruct *current_save = openfile->current;
@ -55,6 +57,7 @@ void do_last_line(void)
edit_redraw(current_save, pww_save);
}
/* Move up one page. */
void do_page_up(void)
{
int i;
@ -95,6 +98,7 @@ void do_page_up(void)
edit_scroll(UP, editwinrows - 2);
}
/* Move down one page. */
void do_page_down(void)
{
int i;
@ -138,7 +142,8 @@ void do_page_down(void)
#ifndef DISABLE_JUSTIFY
/* Move up to the beginning of the last beginning-of-paragraph line
* before the current line. */
* before the current line. If allow_update is TRUE, update the screen
* afterwards. */
void do_para_begin(bool allow_update)
{
const filestruct *current_save = openfile->current;
@ -160,6 +165,8 @@ void do_para_begin(bool allow_update)
edit_redraw(current_save, pww_save);
}
/* Move up to the beginning of the last beginning-of-paragraph line
* before the current line, and update the screen afterwards. */
void do_para_begin_void(void)
{
do_para_begin(TRUE);
@ -167,9 +174,10 @@ void do_para_begin_void(void)
/* Move down to the beginning of the last line of the current paragraph.
* Then move down one line farther if there is such a line, or to the
* end of the current line if not. A line is the last line of a
* paragraph if it is in a paragraph, and the next line either is a
* beginning-of-paragraph line or isn't in a paragraph. */
* end of the current line if not. If allow_update is TRUE, update the
* screen afterwards. A line is the last line of a paragraph if it is
* in a paragraph, and the next line either is the beginning line of a
* paragraph or isn't in a paragraph. */
void do_para_end(bool allow_update)
{
const filestruct *const current_save = openfile->current;
@ -201,6 +209,9 @@ void do_para_end(bool allow_update)
edit_redraw(current_save, pww_save);
}
/* Move down to the beginning of the last line of the current paragraph.
* Then move down one line farther if there is such a line, or to the
* end of the current line if not, and update the screen afterwards. */
void do_para_end_void(void)
{
do_para_end(TRUE);
@ -208,10 +219,10 @@ void do_para_end_void(void)
#endif /* !DISABLE_JUSTIFY */
#ifndef NANO_TINY
/* Move to the next word in the current filestruct. If allow_punct is
* TRUE, treat punctuation as part of a word. If allow_update is TRUE,
* update the screen afterward. Return TRUE if we started on a word,
* and FALSE otherwise. */
/* Move to the next word in the file. If allow_punct is TRUE, treat
* punctuation as part of a word. If allow_update is TRUE, update the
* screen afterwards. Return TRUE if we started on a word, and FALSE
* otherwise. */
bool do_next_word(bool allow_punct, bool allow_update)
{
size_t pww_save = openfile->placewewant;
@ -298,15 +309,18 @@ bool do_next_word(bool allow_punct, bool allow_update)
return started_on_word;
}
/* Move to the next word in the file, treating punctuation as part of a
* word if the WORD_BOUNDS flag is set, and update the screen
* afterwards. */
void do_next_word_void(void)
{
do_next_word(ISSET(WORD_BOUNDS), TRUE);
}
/* Move to the previous word in the current filestruct. If allow_punct
* is TRUE, treat punctuation as part of a word. If allow_update is
* TRUE, update the screen afterward. Return TRUE if we started on a
* word, and FALSE otherwise. */
/* Move to the previous word in the file. If allow_punct is TRUE, treat
* punctuation as part of a word. If allow_update is TRUE, update the
* screen afterwards. Return TRUE if we started on a word, and FALSE
* otherwise. */
bool do_prev_word(bool allow_punct, bool allow_update)
{
size_t pww_save = openfile->placewewant;
@ -429,12 +443,19 @@ bool do_prev_word(bool allow_punct, bool allow_update)
return started_on_word;
}
/* Move to the previous word in the file, treating punctuation as part
* of a word if the WORD_BOUNDS flag is set, and update the screen
* afterwards. */
void do_prev_word_void(void)
{
do_prev_word(ISSET(WORD_BOUNDS), TRUE);
}
#endif /* !NANO_TINY */
/* Move to the beginning of the current line. If the SMART_HOME flag is
* set, move to the first non-whitespace character of the current line
* if we're not already there, or to the beginning of the current line
* if we are. */
void do_home(void)
{
size_t pww_save = openfile->placewewant;
@ -464,6 +485,7 @@ void do_home(void)
update_line(openfile->current, openfile->current_x);
}
/* Move to the end of the current line. */
void do_end(void)
{
size_t pww_save = openfile->placewewant;
@ -477,6 +499,7 @@ void do_end(void)
update_line(openfile->current, openfile->current_x);
}
/* Move up one line. */
void do_up(void)
{
check_statusblank();
@ -516,6 +539,7 @@ void do_up(void)
}
#ifndef NANO_TINY
/* Scroll up one line without scrolling the cursor. */
void do_scroll_up(void)
{
check_statusblank();
@ -540,6 +564,7 @@ void do_scroll_up(void)
}
#endif /* !NANO_TINY */
/* Move down one line. */
void do_down(void)
{
check_statusblank();
@ -579,6 +604,7 @@ void do_down(void)
}
#ifndef NANO_TINY
/* Scroll down one line without scrolling the cursor. */
void do_scroll_down(void)
{
check_statusblank();
@ -603,6 +629,7 @@ void do_scroll_down(void)
}
#endif /* !NANO_TINY */
/* Move left one character. */
void do_left(void)
{
size_t pww_save = openfile->placewewant;
@ -623,6 +650,7 @@ void do_left(void)
update_line(openfile->current, openfile->current_x);
}
/* Move right one character. */
void do_right(void)
{
size_t pww_save = openfile->placewewant;

65
src/nano.c
View File

@ -47,12 +47,14 @@
#include <setjmp.h>
#endif
static struct termios oldterm; /* The user's original term settings. */
static struct sigaction act; /* For all our fun signal handlers. */
static struct termios oldterm;
/* The user's original terminal settings. */
static struct sigaction act;
/* For all our fun signal handlers. */
#ifndef NANO_TINY
static sigjmp_buf jmpbuf; /* Used to return to main() after a
* SIGWINCH. */
static sigjmp_buf jmpbuf;
/* Used to return to main() after a SIGWINCH. */
#endif
/* Create a new filestruct node. Note that we specifically do not set
@ -523,6 +525,7 @@ void free_openfilestruct(openfilestruct *src)
}
#endif
/* Display a warning about a key disabled in view mode. */
void print_view_warning(void)
{
statusbar(_("Key illegal in VIEW mode"));
@ -597,6 +600,8 @@ void die(const char *msg, ...)
exit(1);
}
/* Save the current file under the name spacified in die_filename, which
* is modified to be unique if necessary. */
void die_save_file(const char *die_filename)
{
char *retval;
@ -630,6 +635,7 @@ void die_save_file(const char *die_filename)
free(retval);
}
/* Initialize the three window portions nano uses. */
void window_init(void)
{
/* If the screen height is too small, get out. */
@ -668,6 +674,7 @@ void window_init(void)
}
#ifndef DISABLE_MOUSE
/* Initialize mouse support. */
void mouse_init(void)
{
if (ISSET(USE_MOUSE)) {
@ -710,6 +717,7 @@ void print1opt_full(const char *shortflag
printf("\n");
}
/* Explain how to properly use nano and its command line options. */
void usage(void)
{
#ifdef HAVE_GETOPT_LONG
@ -818,6 +826,9 @@ void usage(void)
exit(0);
}
/* Display the current version of nano, the date and time it was
* compiled, contact information for it, and the configuration options
* it was compiled with. */
void version(void)
{
printf(_(" GNU nano version %s (compiled %s, %s)\n"), VERSION,
@ -883,16 +894,23 @@ void version(void)
printf("\n");
}
/* Return 1 if the MORE_SPACE flag is set, and 0 otherwise. This is
* used to calculate the relative screen position while taking this flag
* into account, since it adds one line to the edit window. */
int no_more_space(void)
{
return ISSET(MORE_SPACE) ? 1 : 0;
}
/* Return 2 if the NO_HELP flag is set, and 0 otherwise. This is used
* to calculate the relative screen position while taking this flag into
* account, since it removes two lines from the edit window. */
int no_help(void)
{
return ISSET(NO_HELP) ? 2 : 0;
}
/* Indicate a disabled function on the statusbar. */
void nano_disabled_msg(void)
{
statusbar(_("Sorry, support for this function has been disabled"));
@ -902,11 +920,14 @@ void do_exit(void)
{
int i;
/* If the file hasn't been modified, pretend the user chose not to
* save. */
if (!openfile->modified)
/* Pretend the user chose not to save. */
i = 0;
/* If the TEMP_FILE flag is set, pretend the user chose to save. */
else if (ISSET(TEMP_FILE))
i = 1;
/* Otherwise, ask the user whether or not to save. */
else
i = do_yesno_prompt(FALSE,
_("Save modified buffer (ANSWERING \"No\" WILL DESTROY CHANGES) ? "));
@ -915,18 +936,22 @@ void do_exit(void)
dump_filestruct(openfile->fileage);
#endif
/* If the user chose not to save, or if the user chose to save and
* the save succeeded, we're ready to exit. */
if (i == 0 || (i == 1 && do_writeout(TRUE) == 0)) {
#ifdef ENABLE_MULTIBUFFER
/* Exit only if there are no more open file buffers. */
if (!close_buffer())
#endif
finish();
/* If the user canceled, we go on. */
} else if (i != 1)
statusbar(_("Cancelled"));
display_main_list();
}
/* Initialize the signal handlers. */
void signal_init(void)
{
/* Trap SIGINT and SIGQUIT because we want them to do useful
@ -1005,6 +1030,7 @@ RETSIGTYPE do_continue(int signal)
}
#ifndef NANO_TINY
/* Handler for SIGWINCH (window size change). */
RETSIGTYPE handle_sigwinch(int signal)
{
const char *tty = ttyname(0);
@ -1079,6 +1105,9 @@ RETSIGTYPE handle_sigwinch(int signal)
siglongjmp(jmpbuf, 1);
}
/* If allow is TRUE, block any SIGWINCH signals that we get, so that we
* can deal with them later. If allow is FALSE, unblock any SIGWINCH
* signals that we have, so that we can deal with them now. */
void allow_pending_sigwinch(bool allow)
{
sigset_t winch;
@ -1089,6 +1118,7 @@ void allow_pending_sigwinch(bool allow)
#endif /* !NANO_TINY */
#ifndef NANO_TINY
/* Handle the global toggle specified in which. */
void do_toggle(const toggle *which)
{
bool enabled;
@ -1139,6 +1169,8 @@ void do_toggle(const toggle *which)
}
#endif /* !NANO_TINY */
/* Disable extended input and output processing in our terminal
* settings. */
void disable_extended_io(void)
{
struct termios term;
@ -1149,6 +1181,8 @@ void disable_extended_io(void)
tcsetattr(0, TCSANOW, &term);
}
/* Disable interpretation of the special control keys in our terminal
* settings. */
void disable_signals(void)
{
struct termios term;
@ -1159,6 +1193,8 @@ void disable_signals(void)
}
#ifndef NANO_TINY
/* Enable interpretation of the special control keys in our terminal
* settings. */
void enable_signals(void)
{
struct termios term;
@ -1169,6 +1205,8 @@ void enable_signals(void)
}
#endif
/* Disable interpretation of the flow control characters in our terminal
* settings. */
void disable_flow_control(void)
{
struct termios term;
@ -1178,6 +1216,8 @@ void disable_flow_control(void)
tcsetattr(0, TCSANOW, &term);
}
/* Enable interpretation of the flow control characters in our terminal
* settings. */
void enable_flow_control(void)
{
struct termios term;
@ -1206,6 +1246,15 @@ void terminal_init(void)
disable_flow_control();
}
/* Read in a character, interpret it as a shortcut or toggle if
* necessary, and return it. Set meta_key to TRUE if the character is a
* meta sequence, set func_key to TRUE if the character is a function
* key, set s_or_t to TRUE if the character is a shortcut or toggle
* key, set ran_func to TRUE if we ran a function associated with a
* shortcut key, and set finished to TRUE if we're done after running
* or trying to run a function associated with a shortcut key. If
* allow_funcs is FALSE, don't actually run any functions associated
* with shortcut keys. */
int do_input(bool *meta_key, bool *func_key, bool *s_or_t, bool
*ran_func, bool *finished, bool allow_funcs)
{
@ -1325,8 +1374,8 @@ int do_input(bool *meta_key, bool *func_key, bool *s_or_t, bool
/* Handle the normal edit window shortcuts, setting
* ran_func to TRUE if we try to run their associated
* functions and setting finished to TRUE to indicate
* that we're done after trying to run their associated
* functions. */
* that we're done after running or trying to run their
* associated functions. */
default:
/* Blow away the text in the cutbuffer if we aren't
* cutting text. */
@ -1364,6 +1413,7 @@ int do_input(bool *meta_key, bool *func_key, bool *s_or_t, bool
}
#ifndef DISABLE_MOUSE
/* Handle a mouse click on the edit window or the shortcut list. */
bool do_mouse(void)
{
int mouse_x, mouse_y;
@ -2095,5 +2145,6 @@ int main(int argc, char **argv)
TRUE);
}
/* We should never get here. */
assert(FALSE);
}

194
src/nano.h
View File

@ -64,15 +64,17 @@
#endif
#ifdef USE_SLANG
/* Slang support enabled. */
/* Slang support. */
#include <slcurses.h>
/* Slang curses emulation brain damage, part 2: Slang doesn't define the
* curses equivalents of the Insert or Delete keys. */
#define KEY_DC SL_KEY_DELETE
#define KEY_IC SL_KEY_IC
/* Ncurses support. */
#elif defined(HAVE_NCURSES_H)
#include <ncurses.h>
#else /* Uh oh. */
#else
/* Curses support. */
#include <curses.h>
#endif /* CURSES_H */
@ -172,81 +174,116 @@ typedef enum {
/* Structure types. */
typedef struct filestruct {
char *data;
struct filestruct *next; /* Next node. */
struct filestruct *prev; /* Previous node. */
ssize_t lineno; /* The line number. */
/* The text of this line. */
ssize_t lineno;
/* The number of this line. */
struct filestruct *next;
/* Next node. */
struct filestruct *prev;
/* Previous node. */
} filestruct;
typedef struct partition {
filestruct *fileage;
/* The top line of this portion of the file. */
filestruct *top_prev;
/* The line before the top line of this portion of the file. */
char *top_data;
/* The text before the beginning of the top line of this portion
* of the file. */
filestruct *filebot;
/* The bottom line of this portion of the file. */
filestruct *bot_next;
/* The line after the bottom line of this portion of the
* file. */
char *bot_data;
/* The text after the end of the bottom line of this portion of
* the file. */
} partition;
#ifdef ENABLE_COLOR
typedef struct colortype {
short fg; /* Foreground color. */
short bg; /* Background color. */
bool bright; /* Is this color A_BOLD? */
bool icase; /* Is this regex string case
* insensitive? */
int pairnum; /* Color pair number used for this
* foreground/background. */
char *start_regex; /* Start (or all) of the regex
* string. */
regex_t *start; /* Compiled start (or all) of the regex
* string. */
char *end_regex; /* End (if any) of the regex string. */
regex_t *end; /* Compiled end (if any) of the regex
* string. */
short fg;
/* This syntax's foreground color. */
short bg;
/* This syntax's background color. */
bool bright;
/* Is this color A_BOLD? */
bool icase;
/* Is this regex string case insensitive? */
int pairnum;
/* The color pair number used for this foreground color and
* background color. */
char *start_regex;
/* The start (or all) of the regex string. */
regex_t *start;
/* The compiled start (or all) of the regex string. */
char *end_regex;
/* The end (if any) of the regex string. */
regex_t *end;
/* The compiled end (if any) of the regex string. */
struct colortype *next;
/* Next set of colors. */
} colortype;
typedef struct exttype {
char *ext_regex; /* Extensions that match this syntax. */
regex_t *ext; /* Compiled extensions that match this
* syntax. */
char *ext_regex;
/* The extensions that match this syntax. */
regex_t *ext;
/* The compiled extensions that match this syntax. */
struct exttype *next;
/* Next set of extensions. */
} exttype;
typedef struct syntaxtype {
char *desc; /* Name of this syntax type. */
exttype *extensions; /* List of extensions that this syntax
* applies to. */
colortype *color; /* Color struct for this syntax. */
char *desc;
/* The name of this syntax. */
exttype *extensions;
/* The list of extensions that this syntax applies to. */
colortype *color;
/* The colors used in this syntax. */
struct syntaxtype *next;
/* Next syntax. */
} syntaxtype;
#endif /* ENABLE_COLOR */
typedef struct openfilestruct {
char *filename; /* Current file's name. */
filestruct *fileage; /* Current file's first line. */
filestruct *filebot; /* Current file's last line. */
filestruct *edittop; /* Current top of edit window. */
filestruct *current; /* Current file's line. */
size_t totsize; /* Current file's total number of
* characters. */
size_t current_x; /* Current file's x-coordinate
* position. */
size_t placewewant; /* Current file's place we want. */
ssize_t current_y; /* Current file's y-coordinate
* position. */
bool modified; /* Current file's modification
* status. */
char *filename;
/* The current file's name. */
filestruct *fileage;
/* The current file's first line. */
filestruct *filebot;
/* The current file's last line. */
filestruct *edittop;
/* The current top of the edit window. */
filestruct *current;
/* The current file's current line. */
size_t totsize;
/* The current file's total number of characters. */
size_t current_x;
/* The current file's x-coordinate position. */
size_t placewewant;
/* The current file's place we want. */
ssize_t current_y;
/* The current file's y-coordinate position. */
bool modified;
/* Whether the current file has been modified. */
#ifndef NANO_TINY
bool mark_set; /* Current file's marking status. */
filestruct *mark_begin; /* Current file's beginning marked
* line. */
size_t mark_begin_x; /* Current file's beginning marked
* line's x-coordinate position. */
file_format fmt; /* Current file's format. */
struct stat *current_stat; /* Current file's stat. */
bool mark_set;
/* Whether the mark is on in the current file. */
filestruct *mark_begin;
/* The current file's beginning marked line, if any. */
size_t mark_begin_x;
/* The current file's beginning marked line's x-coordinate
* position, if any. */
file_format fmt;
/* The current file's format. */
struct stat *current_stat;
/* The current file's stat. */
#endif
#ifdef ENABLE_COLOR
colortype *colorstrings; /* Current file's associated colors. */
colortype *colorstrings;
/* The current file's associated colors. */
#endif
struct openfilestruct *next;
/* Next node. */
@ -256,36 +293,49 @@ typedef struct openfilestruct {
typedef struct shortcut {
/* Key values that aren't used should be set to NANO_NO_KEY. */
int ctrlval; /* Special sentinel key or control key we want
* bound. */
int metaval; /* Meta key we want bound. */
int funcval; /* Function key we want bound. */
int miscval; /* Other Meta key we want bound. */
bool viewok; /* Is this function legal in view mode? */
void (*func)(void); /* Function to call when we catch this key. */
const char *desc; /* Description, e.g. "Page Up". */
int ctrlval;
/* The special sentinel key or control key we want bound, if
* any. */
int metaval;
/* The meta key we want bound, if any. */
int funcval;
/* The function key we want bound, if any. */
int miscval;
/* The other meta key we want bound, if any. */
bool viewok;
/* Is this function allowed when in view mode? */
void (*func)(void);
/* The function to call when we get this key. */
const char *desc;
/* The function's description, e.g. "Page Up". */
#ifndef DISABLE_HELP
const char *help; /* Help file entry text. */
const char *help;
/* The help file entry text for this function. */
#endif
struct shortcut *next;
/* Next shortcut. */
} shortcut;
#ifndef NANO_TINY
typedef struct toggle {
int val; /* Sequence to toggle the key. Should only need
* one. */
const char *desc; /* Description for when toggle is, uh, toggled,
* e.g. "Cut to end"; we'll append Enabled or
* Disabled. */
long flag; /* What flag actually gets toggled. */
int val;
/* The sequence to toggle the key. We should only need one. */
const char *desc;
/* The description for when the toggle is, uh, toggled, e.g.
* "Cut to end"; we'll append Enabled or Disabled. */
long flag;
/* Which flag actually gets toggled. */
struct toggle *next;
/* Next toggle. */
} toggle;
#endif
#ifdef ENABLE_NANORC
typedef struct rcoption {
const char *name;
/* The name of the rcfile option. */
long flag;
/* The flag associated with it, if any. */
} rcoption;
#endif
@ -452,8 +502,8 @@ typedef struct rcoption {
#define NANO_REFRESH_KEY NANO_CONTROL_L
#define NANO_JUSTIFY_KEY NANO_CONTROL_J
#define NANO_JUSTIFY_FKEY KEY_F(4)
#define NANO_UNJUSTIFY_KEY NANO_UNCUT_KEY /* Same key as uncut. */
#define NANO_UNJUSTIFY_FKEY NANO_UNCUT_FKEY /* Same key as uncut. */
#define NANO_UNJUSTIFY_KEY NANO_UNCUT_KEY /* Same key as UnCut. */
#define NANO_UNJUSTIFY_FKEY NANO_UNCUT_FKEY /* Same key as UnCut. */
#define NANO_PREVLINE_KEY NANO_CONTROL_P
#define NANO_NEXTLINE_KEY NANO_CONTROL_N
#define NANO_FORWARD_KEY NANO_CONTROL_F
@ -524,23 +574,23 @@ typedef struct rcoption {
#define VIEW TRUE
#define NOVIEW FALSE
/* Minimum editor window columns and rows required for nano to work
/* The minimum editor window columns and rows required for nano to work
* correctly. */
#define MIN_EDITOR_COLS 4
#define MIN_EDITOR_ROWS 1
/* Default number of characters from end-of-line where text wrapping
* occurs. */
/* The default number of characters from the end of the line where
* wrapping occurs. */
#define CHARS_FROM_EOL 8
/* Default width of a tab. */
/* The default width of a tab in spaces. */
#define WIDTH_OF_TAB 8
/* Maximum number of search/replace history strings saved, not counting
* the blank lines at their ends. */
/* The maximum number of search/replace history strings saved, not
* counting the blank lines at their ends. */
#define MAX_SEARCH_HISTORY 100
/* Maximum number of bytes we read from a file at one time. */
/* The maximum number of bytes we read from a file at one time. */
#define MAX_BUF_SIZE 128
#endif /* !NANO_H */

75
src/prompt.c
View File

@ -38,6 +38,15 @@ static bool reset_statusbar_x = FALSE;
/* Should we reset the cursor position
* at the statusbar prompt? */
/* Read in a character, interpret it as a shortcut or toggle if
* necessary, and return it. Set meta_key to TRUE if the character is a
* meta sequence, set func_key to TRUE if the character is a function
* key, set s_or_t to TRUE if the character is a shortcut or toggle
* key, set ran_func to TRUE if we ran a function associated with a
* shortcut key, and set finished to TRUE if we're done after running
* or trying to run a function associated with a shortcut key. If
* allow_funcs is FALSE, don't actually run any functions associated
* with shortcut keys. */
int do_statusbar_input(bool *meta_key, bool *func_key, bool *s_or_t,
bool *ran_func, bool *finished, bool allow_funcs)
{
@ -75,7 +84,7 @@ int do_statusbar_input(bool *meta_key, bool *func_key, bool *s_or_t,
* statusbar prompt shortcut, set have_shortcut to TRUE. */
have_shortcut = (s != NULL || input == NANO_REFRESH_KEY ||
input == NANO_HOME_KEY || input == NANO_END_KEY ||
input == NANO_FORWARD_KEY || input == NANO_BACK_KEY ||
input == NANO_BACK_KEY || input == NANO_FORWARD_KEY ||
input == NANO_BACKSPACE_KEY || input == NANO_DELETE_KEY ||
input == NANO_CUT_KEY ||
#ifndef NANO_TINY
@ -152,12 +161,12 @@ int do_statusbar_input(bool *meta_key, bool *func_key, bool *s_or_t,
case NANO_END_KEY:
do_statusbar_end();
break;
case NANO_FORWARD_KEY:
do_statusbar_right();
break;
case NANO_BACK_KEY:
do_statusbar_left();
break;
case NANO_FORWARD_KEY:
do_statusbar_right();
break;
case NANO_BACKSPACE_KEY:
/* If we're using restricted mode, the filename
* isn't blank, and we're at the "Write File"
@ -223,8 +232,8 @@ int do_statusbar_input(bool *meta_key, bool *func_key, bool *s_or_t,
/* Handle the normal statusbar prompt shortcuts, setting
* ran_func to TRUE if we try to run their associated
* functions and setting finished to TRUE to indicate
* that we're done after trying to run their associated
* functions. */
* that we're done after running or trying to run their
* associated functions. */
default:
if (s->func != NULL) {
*ran_func = TRUE;
@ -240,6 +249,7 @@ int do_statusbar_input(bool *meta_key, bool *func_key, bool *s_or_t,
}
#ifndef DISABLE_MOUSE
/* Handle a mouse click on the statusbar prompt or the shortcut list. */
bool do_statusbar_mouse(void)
{
int mouse_x, mouse_y;
@ -342,6 +352,10 @@ void do_statusbar_output(char *output, size_t output_len, bool
update_statusbar_line(answer, statusbar_x);
}
/* Move to the beginning of the prompt text. If the SMART_HOME flag is
* set, move to the first non-whitespace character of the prompt text if
* we're not already there, or to the beginning of the prompt text if we
* are. */
void do_statusbar_home(void)
{
size_t pww_save = statusbar_pww;
@ -369,6 +383,7 @@ void do_statusbar_home(void)
update_statusbar_line(answer, statusbar_x);
}
/* Move to the end of the prompt text. */
void do_statusbar_end(void)
{
size_t pww_save = statusbar_pww;
@ -380,19 +395,7 @@ void do_statusbar_end(void)
update_statusbar_line(answer, statusbar_x);
}
void do_statusbar_right(void)
{
if (statusbar_x < strlen(answer)) {
size_t pww_save = statusbar_pww;
statusbar_x = move_mbright(answer, statusbar_x);
statusbar_pww = statusbar_xplustabs();
if (need_statusbar_horizontal_update(pww_save))
update_statusbar_line(answer, statusbar_x);
}
}
/* Move left one character. */
void do_statusbar_left(void)
{
if (statusbar_x > 0) {
@ -406,6 +409,21 @@ void do_statusbar_left(void)
}
}
/* Move right one character. */
void do_statusbar_right(void)
{
if (statusbar_x < strlen(answer)) {
size_t pww_save = statusbar_pww;
statusbar_x = move_mbright(answer, statusbar_x);
statusbar_pww = statusbar_xplustabs();
if (need_statusbar_horizontal_update(pww_save))
update_statusbar_line(answer, statusbar_x);
}
}
/* Backspace over one character. */
void do_statusbar_backspace(void)
{
if (statusbar_x > 0) {
@ -414,6 +432,7 @@ void do_statusbar_backspace(void)
}
}
/* Delete one character. */
void do_statusbar_delete(void)
{
statusbar_pww = statusbar_xplustabs();
@ -435,7 +454,7 @@ void do_statusbar_delete(void)
}
}
/* Move text from the statusbar prompt into oblivion. */
/* Move text from the prompt into oblivion. */
void do_statusbar_cut_text(void)
{
assert(answer != NULL);
@ -456,9 +475,9 @@ void do_statusbar_cut_text(void)
}
#ifndef NANO_TINY
/* Move to the next word at the statusbar prompt. If allow_punct is
* TRUE, treat punctuation as part of a word. Return TRUE if we started
* on a word, and FALSE otherwise. */
/* Move to the next word in the prompt text. If allow_punct is TRUE,
* treat punctuation as part of a word. Return TRUE if we started on a
* word, and FALSE otherwise. */
bool do_statusbar_next_word(bool allow_punct)
{
size_t pww_save = statusbar_pww;
@ -521,7 +540,7 @@ bool do_statusbar_next_word(bool allow_punct)
return started_on_word;
}
/* Move to the previous word at the statusbar prompt. If allow_punct is
/* Move to the previous word in the prompt text. If allow_punct is
* TRUE, treat punctuation as part of a word. Return TRUE if we started
* on a word, and FALSE otherwise. */
bool do_statusbar_prev_word(bool allow_punct)
@ -617,6 +636,8 @@ bool do_statusbar_prev_word(bool allow_punct)
}
#endif /* !NANO_TINY */
/* Get verbatim input. Set got_enter to TRUE if we got the Enter key as
* part of the verbatim input. */
void do_statusbar_verbatim_input(bool *got_enter)
{
int *kbinput;
@ -642,6 +663,10 @@ void do_statusbar_verbatim_input(bool *got_enter)
}
#ifndef NANO_TINY
/* Search for a match to one of the two characters in bracket_set. If
* reverse is TRUE, search backwards for the leftmost bracket.
* Otherwise, search forwards for the rightmost bracket. Return TRUE if
* we found a match, and FALSE otherwise. */
bool find_statusbar_bracket_match(bool reverse, const char
*bracket_set)
{
@ -681,6 +706,8 @@ bool find_statusbar_bracket_match(bool reverse, const char
return TRUE;
}
/* Search for a match to the bracket at the current cursor position, if
* there is one. */
void do_statusbar_find_bracket(void)
{
size_t statusbar_x_save, pww_save;

88
src/proto.h
View File

@ -24,17 +24,29 @@
#ifndef PROTO_H
#define PROTO_H 1
/* Public externs. */
#include "nano.h"
/* Public externs. See global.c for descriptions of them. */
#ifndef DISABLE_WRAPJUSTIFY
extern ssize_t fill;
extern ssize_t wrap_at;
#endif
extern int editwinrows;
extern char *last_search;
extern char *last_replace;
extern long flags;
extern ssize_t tabsize;
extern int currslen;
extern WINDOW *topwin;
extern WINDOW *edit;
extern WINDOW *bottomwin;
extern int editwinrows;
extern filestruct *cutbuffer;
#ifndef DISABLE_JUSTIFY
extern filestruct *jusbuffer;
#endif
extern partition *filepart;
extern openfilestruct *openfile;
#if !defined(NANO_TINY) && defined(ENABLE_NANORC)
extern char *whitespace;
@ -54,41 +66,29 @@ extern size_t quotelen;
#endif
#endif
extern char *answer;
extern ssize_t tabsize;
#ifndef NANO_TINY
extern char *backup_dir;
#endif
extern WINDOW *topwin, *edit, *bottomwin;
extern char *answer;
extern char *last_search;
extern char *last_replace;
#ifndef DISABLE_OPERATINGDIR
extern char *operating_dir;
extern char *full_operating_dir;
#endif
#ifndef DISABLE_SPELLER
extern char *alt_speller;
#endif
extern struct stat fileinfo;
extern filestruct *cutbuffer;
#ifndef DISABLE_JUSTIFY
extern filestruct *jusbuffer;
#endif
extern partition *filepart;
extern openfilestruct *openfile;
#ifdef ENABLE_COLOR
extern syntaxtype *syntaxes;
extern char *syntaxstr;
#endif
extern shortcut *shortcut_list;
extern shortcut *main_list, *whereis_list;
extern shortcut *replace_list, *gotoline_list;
extern shortcut *writefile_list, *insertfile_list;
extern shortcut *main_list;
extern shortcut *whereis_list;
extern shortcut *replace_list;
extern shortcut *replace_list_2;
extern shortcut *gotoline_list;
extern shortcut *writefile_list;
extern shortcut *insertfile_list;
#ifndef NANO_TINY
extern shortcut *extcmd_list;
#endif
@ -99,20 +99,16 @@ extern shortcut *help_list;
extern shortcut *spell_list;
#endif
#ifndef DISABLE_BROWSER
extern shortcut *browser_list, *gotodir_list;
extern shortcut *browser_list;
extern shortcut *gotodir_list;
#endif
#ifdef ENABLE_COLOR
extern syntaxtype *syntaxes;
extern char *syntaxstr;
#endif
extern const shortcut *currshortcut;
#ifdef HAVE_REGEX_H
extern regex_t search_regexp;
extern regmatch_t regmatches[10];
#ifdef ENABLE_COLOR
extern regex_t syntaxfile_regexp;
extern regmatch_t synfilematches[1];
#endif
#endif
#ifndef NANO_TINY
extern toggle *toggles;
#endif
@ -126,12 +122,15 @@ extern filestruct *replaceage;
extern filestruct *replacebot;
#endif
#ifdef HAVE_REGEX_H
extern regex_t search_regexp;
extern regmatch_t regmatches[10];
#endif
extern bool curses_ended;
extern char *homedir;
/* The functions we want available. */
/* Public functions in browser.c. */
#ifndef DISABLE_BROWSER
char *do_browser(char *path, DIR *dir);
@ -436,8 +435,8 @@ void do_statusbar_output(char *output, size_t output_len, bool
*got_enter, bool allow_cntrls);
void do_statusbar_home(void);
void do_statusbar_end(void);
void do_statusbar_right(void);
void do_statusbar_left(void);
void do_statusbar_right(void);
void do_statusbar_backspace(void);
void do_statusbar_delete(void);
void do_statusbar_cut_text(void);
@ -496,7 +495,7 @@ int regexp_init(const char *regexp);
void regexp_cleanup(void);
#endif
void not_found_msg(const char *str);
void search_abort(void);
void search_replace_abort(void);
void search_init_globals(void);
int search_init(bool replacing, bool use_answer);
bool findnextstr(
@ -510,7 +509,6 @@ void do_search(void);
#ifndef NANO_TINY
void do_research(void);
#endif
void replace_abort(void);
#ifdef HAVE_REGEX_H
int replace_regexp(char *string, bool create);
#endif
@ -526,7 +524,7 @@ void do_gotolinecolumn(ssize_t line, ssize_t column, bool use_answer,
bool interactive, bool save_pos, bool allow_update);
void do_gotolinecolumn_void(void);
#ifndef DISABLE_SPELLER
void do_gotopos(ssize_t line, size_t pos_x, ssize_t pos_y, size_t
void do_gotopos(ssize_t pos_line, size_t pos_x, ssize_t pos_y, size_t
pos_pww);
#endif
#ifndef NANO_TINY
@ -621,7 +619,7 @@ ssize_t ngetdelim(char **lineptr, size_t *n, int delim, FILE *stream);
int safe_regexec(const regex_t *preg, const char *string, size_t nmatch,
regmatch_t pmatch[], int eflags);
#endif
int regexp_bol_or_eol(const regex_t *preg, const char *string);
bool regexp_bol_or_eol(const regex_t *preg, const char *string);
#endif
#ifndef DISABLE_SPELLER
bool is_whole_word(size_t pos, const char *buf, const char *word);

17
src/rcfile.c
View File

@ -93,8 +93,12 @@ const static rcoption rcopts[] = {
};
static bool errors = FALSE;
/* Whether we got any errors while parsing an rcfile. */
static size_t lineno = 0;
/* If we did, the line number where the current error
* occurred. */
static char *nanorc = NULL;
/* The path to the rcfile we're parsing. */
#ifdef ENABLE_COLOR
static syntaxtype *endsyntax = NULL;
/* The end of the list of syntaxes. */
@ -180,6 +184,8 @@ char *parse_argument(char *ptr)
}
#ifdef ENABLE_COLOR
/* Return the short value corresponding to the color named in colorname,
* and set bright to TRUE if that color is bright. */
short color_to_short(const char *colorname, bool *bright)
{
short mcolor = -1;
@ -217,6 +223,7 @@ short color_to_short(const char *colorname, bool *bright)
return mcolor;
}
/* Parse the next regex string from the line at ptr, and return it. */
char *parse_next_regex(char *ptr)
{
assert(ptr != NULL);
@ -265,6 +272,8 @@ bool nregcomp(const char *regex, int eflags)
return (rc == 0);
}
/* Parse the next syntax string from the line at ptr, and add it to the
* global list of color syntaxes. */
void parse_syntax(char *ptr)
{
const char *fileregptr = NULL, *nameptr = NULL;
@ -372,8 +381,9 @@ void parse_syntax(char *ptr)
}
}
/* Parse the color stuff into the colorstrings array. If icase is TRUE,
* treat the color stuff as case insensitive. */
/* Parse the color string in the line at ptr, and add it to the current
* file's associated colors. If icase is TRUE, treat the color string
* as case insensitive. */
void parse_colors(char *ptr, bool icase)
{
short fg, bg;
@ -529,7 +539,8 @@ void parse_colors(char *ptr, bool icase)
}
#endif /* ENABLE_COLOR */
/* Parse the rcfile, once it has been opened successfully. */
/* Parse the rcfile, once it has been opened successfully at
* rcstream. */
void parse_rcfile(FILE *rcstream)
{
char *buf = NULL;

48
src/search.c
View File

@ -68,6 +68,8 @@ int regexp_init(const char *regexp)
return 1;
}
/* Decompile the compiled regular expression we used in the last
* search, if any. */
void regexp_cleanup(void)
{
if (regexp_compiled) {
@ -77,6 +79,8 @@ void regexp_cleanup(void)
}
#endif
/* Indicate on the statusbar that the string at str was not found by the
* last search. */
void not_found_msg(const char *str)
{
char *disp;
@ -93,7 +97,11 @@ void not_found_msg(const char *str)
free(disp);
}
void search_abort(void)
/* Abort the current search or replace. Clean up by displaying the main
* shortcut list, updating the screen if the mark was on before, and
* decompiling the compiled regular expression we used in the last
* search, if any. */
void search_replace_abort(void)
{
display_main_list();
#ifndef NANO_TINY
@ -105,6 +113,7 @@ void search_abort(void)
#endif
}
/* Initialize the global search and replace strings. */
void search_init_globals(void)
{
if (last_search == NULL)
@ -403,6 +412,8 @@ bool findnextstr(
return TRUE;
}
/* Clear the flag indicating that a search reached the last line of the
* file. We need to do this just before a new search. */
void findnextstr_wrap_reset(void)
{
search_last_line = FALSE;
@ -424,7 +435,7 @@ void do_search(void)
i = search_init(FALSE, FALSE);
if (i == -1) /* Cancel, Go to Line, blank search string, or
* regcomp() failed. */
search_abort();
search_replace_abort();
else if (i == -2) /* Replace. */
do_replace();
#if !defined(NANO_TINY) || defined(HAVE_REGEX_H)
@ -487,11 +498,11 @@ void do_search(void)
openfile->placewewant = xplustabs();
edit_redraw(fileptr, old_pww);
search_abort();
search_replace_abort();
}
#ifndef NANO_TINY
/* Search for the next string without prompting. */
/* Search for the last string without prompting. */
void do_research(void)
{
filestruct *fileptr = openfile->current;
@ -553,16 +564,10 @@ void do_research(void)
openfile->placewewant = xplustabs();
edit_redraw(fileptr, old_pww);
search_abort();
search_replace_abort();
}
#endif
void replace_abort(void)
{
/* For now, we do the same thing as search_abort(). */
search_abort();
}
#ifdef HAVE_REGEX_H
int replace_regexp(char *string, bool create)
{
@ -881,14 +886,14 @@ void do_replace(void)
if (ISSET(VIEW_MODE)) {
print_view_warning();
replace_abort();
search_replace_abort();
return;
}
i = search_init(TRUE, FALSE);
if (i == -1) { /* Cancel, Go to Line, blank search
* string, or regcomp() failed. */
replace_abort();
search_replace_abort();
return;
} else if (i == -2) { /* No Replace. */
do_search();
@ -930,7 +935,7 @@ void do_replace(void)
answer = mallocstrcpy(answer, last_replace);
statusbar(_("Cancelled"));
}
replace_abort();
search_replace_abort();
return;
}
@ -961,7 +966,7 @@ void do_replace(void)
"Replaced %lu occurrences", (unsigned long)numreplaced),
(unsigned long)numreplaced);
replace_abort();
search_replace_abort();
}
/* Go to the specified line and column, or ask for them if interactive
@ -1035,6 +1040,7 @@ void do_gotolinecolumn(ssize_t line, ssize_t column, bool use_answer,
display_main_list();
}
/* Go to the specified line and column, asking for them beforehand. */
void do_gotolinecolumn_void(void)
{
do_gotolinecolumn(openfile->current->lineno,
@ -1042,13 +1048,16 @@ void do_gotolinecolumn_void(void)
}
#ifndef DISABLE_SPELLER
void do_gotopos(ssize_t line, size_t pos_x, ssize_t pos_y, size_t
/* Go to the line with the number specified in pos_line, the
* x-coordinate specified in pos_x, the y-coordinate specified in pos_y,
* and the place we want specified in pos_pww. */
void do_gotopos(ssize_t pos_line, size_t pos_x, ssize_t pos_y, size_t
pos_pww)
{
/* Since do_gotolinecolumn() resets the x-coordinate but not the
* y-coordinate, set the coordinates up this way. */
openfile->current_y = pos_y;
do_gotolinecolumn(line, pos_x + 1, FALSE, FALSE, TRUE, TRUE);
do_gotolinecolumn(pos_line, pos_x + 1, FALSE, FALSE, TRUE, TRUE);
/* Set the rest of the coordinates up. */
openfile->placewewant = pos_pww;
@ -1058,8 +1067,9 @@ void do_gotopos(ssize_t line, size_t pos_x, ssize_t pos_y, size_t
#ifndef NANO_TINY
/* Search for a match to one of the two characters in bracket_set. If
* reverse is TRUE, search backwards. Otherwise, search forwards.
* Return TRUE if we found a match, or FALSE otherwise. */
* reverse is TRUE, search backwards for the leftmost bracket.
* Otherwise, search forwards for the rightmost bracket. Return TRUE if
* we found a match, and FALSE otherwise. */
bool find_bracket_match(bool reverse, const char *bracket_set)
{
filestruct *fileptr = openfile->current;

32
src/text.c
View File

@ -33,8 +33,8 @@
#ifndef NANO_TINY
static pid_t pid = -1;
/* The PID of the newly forked process in execute_command(), for
* use with the cancel_command() signal handler. */
/* The PID of the forked process in execute_command(), for use
* with the cancel_command() signal handler. */
#endif
#ifndef DISABLE_WRAPPING
static bool prepend_wrap = FALSE;
@ -46,6 +46,7 @@ static filestruct *jusbottom = NULL;
#endif
#ifndef NANO_TINY
/* Toggle the mark. */
void do_mark(void)
{
openfile->mark_set = !openfile->mark_set;
@ -62,6 +63,7 @@ void do_mark(void)
}
#endif /* !NANO_TINY */
/* Delete one character. */
void do_delete(void)
{
bool do_refresh = FALSE;
@ -150,6 +152,7 @@ void do_delete(void)
update_line(openfile->current, openfile->current_x);
}
/* Backspace over one character. */
void do_backspace(void)
{
if (openfile->current != openfile->fileage ||
@ -159,6 +162,8 @@ void do_backspace(void)
}
}
/* Insert a tab. If the TABS_TO_SPACES flag is set, insert the number
* of spaces that a tab would normally take up. */
void do_tab(void)
{
#ifndef NANO_TINY
@ -187,7 +192,7 @@ void do_tab(void)
#endif
}
/* Someone hits Enter *gasp!* */
/* Someone hits Enter/Return *gasp!* */
void do_enter(void)
{
filestruct *newnode = make_new_node(openfile->current);
@ -244,6 +249,8 @@ void do_enter(void)
}
#ifndef NANO_TINY
/* Send a SIGKILL (unconditional kill) to the forked process in
* execute_command(). */
RETSIGTYPE cancel_command(int signal)
{
if (kill(pid, SIGKILL) == -1)
@ -341,6 +348,8 @@ bool execute_command(const char *command)
#endif /* !NANO_TINY */
#ifndef DISABLE_WRAPPING
/* Clear the prepend_wrap flag. We need to do this as soon as we do
* something other than type text. */
void wrap_reset(void)
{
prepend_wrap = FALSE;
@ -1555,11 +1564,13 @@ void do_justify(bool full_justify)
display_main_list();
}
/* Justify the current paragraph. */
void do_justify_void(void)
{
do_justify(FALSE);
}
/* Justify the entire file. */
void do_full_justify(void)
{
do_justify(TRUE);
@ -1732,9 +1743,9 @@ bool do_int_spell_fix(const char *word)
return !canceled;
}
/* Integrated spell checking using the spell program, filtered through
* the sort and uniq programs. Return NULL for normal termination,
* and the error string otherwise. */
/* Internal (integrated) spell checking using the spell program,
* filtered through the sort and uniq programs. Return NULL for normal
* termination, and the error string otherwise. */
const char *do_int_speller(const char *tempfile_name)
{
char *read_buff, *read_buff_ptr, *read_buff_word;
@ -1882,7 +1893,7 @@ const char *do_int_speller(const char *tempfile_name)
do_int_spell_fix(read_buff_word);
free(read_buff);
replace_abort();
search_replace_abort();
edit_refresh();
/* Process the end of the spell process. */
@ -1914,8 +1925,8 @@ const char *do_int_speller(const char *tempfile_name)
exit(1);
}
/* External spell checking. Return value: NULL for normal termination,
* otherwise the error string. */
/* External (alternate) spell checking. Return NULL for normal
* termination, and the error string otherwise. */
const char *do_alt_speller(char *tempfile_name)
{
int alt_spell_status;
@ -2107,6 +2118,8 @@ const char *do_alt_speller(char *tempfile_name)
return NULL;
}
/* Spell check the current file. If an alternate spell checker is
* specified, use it. Otherwise, use the internal spell checker. */
void do_spell(void)
{
int i;
@ -2220,6 +2233,7 @@ void do_wordlinechar_count(void)
}
#endif /* !NANO_TINY */
/* Get verbatim input. */
void do_verbatim_input(void)
{
int *kbinput;

16
src/utils.c
View File

@ -30,6 +30,7 @@
#include <ctype.h>
#include <errno.h>
/* Return the number of decimal digits in n. */
int digits(size_t n)
{
int i = 1;
@ -249,7 +250,9 @@ int safe_regexec(const regex_t *preg, const char *string, size_t nmatch,
}
#endif
int regexp_bol_or_eol(const regex_t *preg, const char *string)
/* Do the compiled regex in preg and the regex in string match the
* beginning or end of a line? */
bool regexp_bol_or_eol(const regex_t *preg, const char *string)
{
return (regexec(preg, string, 0, NULL, 0) == 0 &&
regexec(preg, string, 0, NULL, REG_NOTBOL | REG_NOTEOL) ==
@ -361,7 +364,9 @@ void nperror(const char *s)
}
}
/* Thanks, BG, many people have been asking for this... */
/* This is a wrapper for the malloc() function that properly handles
* things when we run out of memory. Thanks, BG, many people have been
* asking for this... */
void *nmalloc(size_t howmuch)
{
void *r = malloc(howmuch);
@ -372,6 +377,8 @@ void *nmalloc(size_t howmuch)
return r;
}
/* This is a wrapper for the realloc() function that properly handles
* things when we run out of memory. */
void *nrealloc(void *ptr, size_t howmuch)
{
void *r = realloc(ptr, howmuch);
@ -511,11 +518,14 @@ void new_magicline(void)
#ifndef NANO_TINY
/* Remove the magicline from filebot, if there is one and it isn't the
* only line in the file. */
* only line in the file. Assume that edittop and current are not at
* filebot. */
void remove_magicline(void)
{
if (openfile->filebot->data[0] == '\0' &&
openfile->filebot != openfile->fileage) {
assert(openfile->filebot != openfile->edittop && openfile->filebot != openfile->current);
openfile->filebot = openfile->filebot->prev;
free_filestruct(openfile->filebot->next);
openfile->filebot->next = NULL;

40
src/winio.c
View File

@ -1586,6 +1586,14 @@ bool get_mouseinput(int *mouse_x, int *mouse_y, bool allow_shortcuts)
}
#endif /* !DISABLE_MOUSE */
/* Return the shortcut corresponding to the values of kbinput (the key
* itself), meta_key (whether the key is a meta sequence), and func_key
* (whether the key is a function key), if any. The shortcut will be
* the first one in the list (control key, meta key sequence, function
* key, other meta key sequence) for the corresponding function. For
* example, passing in a meta key sequence that corresponds to a
* function with a control key, a function key, and a meta key sequence
* will return the control key corresponding to that function. */
const shortcut *get_shortcut(const shortcut *s_list, int *kbinput, bool
*meta_key, bool *func_key)
{
@ -1638,6 +1646,9 @@ const shortcut *get_shortcut(const shortcut *s_list, int *kbinput, bool
}
#ifndef NANO_TINY
/* Return the global toggle corresponding to the values of kbinput (the
* key itself) and meta_key (whether the key is a meta sequence), if
* any. */
const toggle *get_toggle(int kbinput, bool meta_key)
{
const toggle *t = toggles;
@ -1667,17 +1678,22 @@ void blank_line(WINDOW *win, int y, int x, int n)
waddch(win, ' ');
}
/* Blank the first line of the top portion of the window. */
void blank_titlebar(void)
{
blank_line(topwin, 0, 0, COLS);
}
/* If the MORE_SPACE flag isn't set, blank the second line of the top
* portion of the window. */
void blank_topbar(void)
{
if (!ISSET(MORE_SPACE))
blank_line(topwin, 1, 0, COLS);
}
/* Blank all the lines of the middle portion of the window, i.e, the
* edit window. */
void blank_edit(void)
{
int i;
@ -1685,11 +1701,14 @@ void blank_edit(void)
blank_line(edit, i, 0, COLS);
}
/* Blank the first line of the bottom portion of the window. */
void blank_statusbar(void)
{
blank_line(bottomwin, 0, 0, COLS);
}
/* If the NO_HELP flag isn't set, blank the last two lines of the bottom
* portion of the window. */
void blank_bottombars(void)
{
if (!ISSET(NO_HELP)) {
@ -1698,6 +1717,9 @@ void blank_bottombars(void)
}
}
/* Check if the number of keystrokes needed to blank the statusbar has
* been pressed. If so, blank the statusbar, unless constant cursor
* position display is on. */
void check_statusblank(void)
{
if (statusblank > 0)
@ -1872,6 +1894,12 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
return converted;
}
/* Display the path specified in path on the titlebar, along with the
* current version of nano and whether the current file has been
* modified. If path is NULL, assume we're in normal editing mode and
* display the current filename instead. Otherwise, assume we're in the
* file browser, and don't display whether the current file has been
* modified. */
void titlebar(const char *path)
{
int space = COLS;
@ -2029,8 +2057,8 @@ void titlebar(const char *path)
wnoutrefresh(edit);
}
/* Set the modified flag if it isn't already set, and then update the
* titlebar. */
/* Mark the current file as modified if it isn't already, and then
* update the titlebar to display the file's new status. */
void set_modified(void)
{
if (!openfile->modified) {
@ -2106,6 +2134,8 @@ void statusbar(const char *msg, ...)
25;
}
/* Display the shortcut list in s on the last two rows of the bottom
* portion of the window. */
void bottombars(const shortcut *s)
{
size_t i, colwidth, slen;
@ -2846,6 +2876,7 @@ void edit_update(update_type location)
openfile->edittop = foo;
}
/* Unconditionally redraw the entire screen. */
void total_redraw(void)
{
#ifdef USE_SLANG
@ -2858,6 +2889,8 @@ void total_redraw(void)
#endif
}
/* Unconditionally redraw the entire screen, and then refresh it using
* the current file. */
void total_refresh(void)
{
total_redraw();
@ -2866,6 +2899,8 @@ void total_refresh(void)
bottombars(currshortcut);
}
/* Display the main shortcut list on the last two rows of the bottom
* portion of the window. */
void display_main_list(void)
{
bottombars(main_list);
@ -2921,6 +2956,7 @@ void do_cursorpos(bool constant)
disable_cursorpos = FALSE;
}
/* Unconditionally display the current cursor position. */
void do_cursorpos_void(void)
{
do_cursorpos(FALSE);