DB's rewrite of the screen update and color routines
git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1285 35c25a1d-7b9e-4130-9fde-d3aeb78583b8master
David Lawrence Ramsey
parent
7c4222ca90
commit
1f28b8f400
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@ -24,6 +24,9 @@ CVS code -
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properly. New function init_operating_dir() to handle
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setting it both on the command line and in the nanorc file.
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(David Benbennick)
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- Major rewrite of color and screen update routines to fix
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minor bugs and increase efficiency. New function
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set_colorpairs() for the former. (David Benbennick)
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- configure.ac:
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- Added pt_BR to ALL_LINGUAS (Jordi).
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- Changed --enable-color warning to be slightly less severe.
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@ -122,7 +125,9 @@ CVS code -
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format ({} instead of \{\}) (found by DLR).
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- Add a better string matching sequence that includes escaped
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quotes (thanks to Carl E. Lindberg, who doesn't even know he
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helped ;-)
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helped ;-). Some unneeded \'s in that sequence removed, and
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a new sequence to handle multi-line quotes added, by David
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Benbennick.
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- rcfile.c:
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parse_colors()
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- Stop infinite loop when syntax doesn't begin with " char.
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85
color.c
85
color.c
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@ -40,72 +40,91 @@
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#define _(string) (string)
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#endif
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/* For each syntax list entry, we go through the list of colors and
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* assign color pairs. */
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void set_colorpairs(void)
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{
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const syntaxtype *this_syntax = syntaxes;
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for(; this_syntax != NULL; this_syntax = this_syntax->next) {
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colortype *this_color = this_syntax->color;
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int color_pair = 1;
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for(; this_color != NULL; this_color = this_color->next) {
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const colortype *beforenow = this_syntax->color;
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for(; beforenow != NULL && beforenow != this_color &&
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(beforenow->fg != this_color->fg ||
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beforenow->bg != this_color->bg ||
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beforenow->bright != this_color->bright);
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beforenow = beforenow->next)
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;
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if (beforenow != NULL && beforenow != this_color)
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this_color->pairnum = beforenow->pairnum;
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else {
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this_color->pairnum = color_pair;
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color_pair++;
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}
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}
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}
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}
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void do_colorinit(void)
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{
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int i;
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colortype *tmpcolor = NULL, *beforenow = NULL;
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int defok = 0;
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if (has_colors()) {
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const colortype *tmpcolor = NULL;
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#ifdef HAVE_USE_DEFAULT_COLORS
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int defok;
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#endif
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start_color();
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/* Add in colors, if available */
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#ifdef HAVE_USE_DEFAULT_COLORS
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if (use_default_colors() != ERR)
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defok = 1;
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defok = use_default_colors() != ERR;
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#endif
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i = 1;
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for (tmpcolor = colorstrings; tmpcolor != NULL;
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tmpcolor = tmpcolor->next) {
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short background = tmpcolor->bg;
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for (beforenow = colorstrings; beforenow != NULL
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&& beforenow != tmpcolor &&
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(beforenow->fg != tmpcolor->fg || beforenow->bg != tmpcolor->bg
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|| beforenow->bright != tmpcolor->bright);
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beforenow = beforenow->next)
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;
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if (background == -1)
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#ifdef HAVE_USE_DEFAULT_COLORS
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if (!defok)
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#endif
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background = COLOR_BLACK;
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if (beforenow != NULL && beforenow != tmpcolor) {
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tmpcolor->pairnum = beforenow->pairnum;
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continue;
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}
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if (defok && tmpcolor->bg == -1)
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init_pair(i, tmpcolor->fg, -1);
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else if (tmpcolor->bg == -1)
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init_pair(i, tmpcolor->fg, COLOR_BLACK);
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else /* They picked a fg and bg color */
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init_pair(i, tmpcolor->fg, tmpcolor->bg);
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init_pair(tmpcolor->pairnum, tmpcolor->fg, background);
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#ifdef DEBUG
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fprintf(stderr, _("Running init_pair with fg = %d and bg = %d\n"), tmpcolor->fg, tmpcolor->bg);
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#endif
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tmpcolor->pairnum = i;
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i++;
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}
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}
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return;
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}
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/* Update the color information based on the current filename */
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void update_color(void)
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{
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syntaxtype *tmpsyntax;
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const syntaxtype *tmpsyntax;
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colorstrings = NULL;
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for (tmpsyntax = syntaxes; tmpsyntax != NULL; tmpsyntax = tmpsyntax->next) {
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exttype *e;
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const exttype *e;
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for (e = tmpsyntax->extensions; e != NULL; e = e->next) {
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regcomp(&syntaxfile_regexp, e->val, REG_EXTENDED);
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regex_t syntaxfile_regexp;
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regcomp(&syntaxfile_regexp, e->val, REG_EXTENDED | REG_NOSUB);
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/* Set colorstrings if we matched the extension regex */
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if (!regexec(&syntaxfile_regexp, filename, 1, synfilematches, 0))
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if (!regexec(&syntaxfile_regexp, filename, 0, NULL, 0))
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colorstrings = tmpsyntax->color;
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regfree(&syntaxfile_regexp);
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if (colorstrings != NULL)
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break;
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}
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}
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9
global.c
9
global.c
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@ -125,7 +125,7 @@ shortcut *browser_list = NULL;
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#endif
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#ifdef ENABLE_COLOR
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colortype *colorstrings = NULL;
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const colortype *colorstrings = NULL;
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syntaxtype *syntaxes = NULL;
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char *syntaxstr = NULL;
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#endif
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@ -145,13 +145,6 @@ regex_t search_regexp; /* Global to store compiled search regexp */
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regmatch_t regmatches[10]; /* Match positions for parenthetical
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subexpressions, max of 10 */
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#endif
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#ifdef ENABLE_COLOR
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regex_t color_regexp; /* Global to store compiled search regexp */
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regmatch_t colormatches[1]; /* Match positions for parenthetical */
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regex_t syntaxfile_regexp; /* Global to store compiled search regexp */
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regmatch_t synfilematches[1]; /* Match positions for parenthetical */
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#endif /* ENABLE_COLOR */
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int length_of_list(const shortcut *s)
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{
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@ -102,7 +102,8 @@
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# because syntax highlighting rules will be applied in the order they are
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# read in
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# color brightyellow "<[^= ]*>" "\"(\\.|[^\\"])*\""
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# color brightyellow "<[^= ]*>" ""(\\.|[^\"])*""
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# color brightyellow start=""(\\.|[^\"])*\\( | )*$" end="^(\\.|[^\"])*""
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# color brightblue "//.*"
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# color brightblue start="/\*" end="\*/"
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18
proto.h
18
proto.h
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@ -71,11 +71,9 @@ extern openfilestruct *open_files;
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#endif
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#ifdef ENABLE_COLOR
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extern colortype *colorstrings;
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extern const colortype *colorstrings;
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extern syntaxtype *syntaxes;
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extern char *syntaxstr;
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extern regex_t color_regexp;
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extern regmatch_t colormatches[1];
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#endif
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extern shortcut *shortcut_list;
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@ -110,6 +108,7 @@ extern toggle *toggles;
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/* Public functions in color.c */
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#ifdef ENABLE_COLOR
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void set_colorpairs(void);
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void do_colorinit(void);
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void update_color(void);
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#endif /* ENABLE_COLOR */
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@ -401,15 +400,18 @@ void set_modified(void);
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void titlebar(const char *path);
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void bottombars(const shortcut *s);
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void onekey(const char *keystroke, const char *desc, int len);
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int get_page_start_virtual(int page);
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int get_page_from_virtual(int virtual);
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int get_page_end_virtual(int page);
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#ifndef NDEBUG
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int check_linenumbers(const filestruct *fileptr);
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#endif
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int get_page_start(int column);
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void reset_cursor(void);
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void add_marked_sameline(int begin, int end, filestruct *fileptr, int y,
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int virt_cur_x, int this_page);
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void edit_add(filestruct *fileptr, int yval, int start, int virt_cur_x,
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int virt_mark_beginx, int this_page);
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void edit_add(const filestruct *fileptr, int yval, int start
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#ifndef NANO_SMALL
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, int virt_mark_beginx, int virt_cur_x
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#endif
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);
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void update_line(filestruct *fileptr, int index);
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void update_cursor(void);
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void center_cursor(void);
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3
rcfile.c
3
rcfile.c
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@ -631,6 +631,9 @@ void do_rcfile(void)
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}
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free(nanorc);
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#ifdef ENABLE_COLOR
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set_colorpairs();
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#endif
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}
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#endif /* ENABLE_NANORC */
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806
winio.c
806
winio.c
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@ -59,32 +59,6 @@ int do_last_line(void)
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return 1;
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}
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/* Like xplustabs, but for a specific index of a specific filestruct */
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int xpt(const filestruct *fileptr, int index)
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{
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int i, tabs = 0;
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if (fileptr == NULL || fileptr->data == NULL)
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return 0;
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for (i = 0; i < index && fileptr->data[i] != 0; i++) {
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tabs++;
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if (fileptr->data[i] == NANO_CONTROL_I) {
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if (tabs % tabsize == 0);
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else
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tabs += tabsize - (tabs % tabsize);
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} else if (is_cntrl_char((int)fileptr->data[i]))
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tabs++;
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else if (fileptr->data[i] & 0x80)
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/* Make 8 bit chars only 1 column! */
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;
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}
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return tabs;
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}
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/* Return the placewewant associated with current_x. That is, xplustabs
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* is the zero-based column position of the cursor. Value is no smaller
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* than current_x. */
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@ -575,41 +549,23 @@ void onekey(const char *keystroke, const char *desc, int len)
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}
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}
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/* And so start the display update routines. Given a column, this
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* returns the "page" it is on. "page", in the case of the display
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* columns, means which set of 80 characters is viewable (e.g. page 1
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* shows from 1 to COLS). */
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int get_page_from_virtual(int virtual)
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/* And so start the display update routines. */
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#ifndef NDEBUG
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int check_linenumbers(const filestruct *fileptr)
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{
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int page = 2;
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int check_line = 0;
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const filestruct *filetmp;
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if (virtual <= COLS - 2)
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return 1;
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virtual -= (COLS - 2);
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while (virtual > COLS - 2 - 7) {
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virtual -= (COLS - 2 - 7);
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page++;
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}
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return page;
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}
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/* The inverse of the above function */
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int get_page_start_virtual(int page)
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{
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int virtual;
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virtual = --page * (COLS - 7);
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if (page)
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virtual -= 2 * page - 1;
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return virtual;
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}
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int get_page_end_virtual(int page)
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{
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return get_page_start_virtual(page) + COLS - 1;
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for (filetmp = edittop; filetmp != fileptr; filetmp = filetmp->next)
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check_line++;
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return check_line;
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}
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#endif
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/* nano scrolls horizontally within a line in chunks. This function
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* returns the column number of the first character displayed in the
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* window when the cursor is at the given column. */
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int get_page_start(int column)
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{
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assert(COLS > 9);
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@ -639,474 +595,380 @@ void reset_cursor(void)
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wmove(edit, current_y, x - get_page_start(x));
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}
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#ifndef NANO_SMALL
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/* This takes care of the case where there is a mark that covers only
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* the current line. It expects a line with no tab characters (i.e.
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* the type that edit_add() deals with. */
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void add_marked_sameline(int begin, int end, filestruct *fileptr, int y,
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int virt_cur_x, int this_page)
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{
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/*
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* The general idea is to break the line up into 3 sections: before
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* the mark, the mark, and after the mark. We then paint each in
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* turn (for those that are currently visible, of course)
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*
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* 3 start points: 0 -> begin, begin->end, end->strlen(data)
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* in data : pre sel post
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*/
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int this_page_start = get_page_start_virtual(this_page),
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this_page_end = get_page_end_virtual(this_page);
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/* likewise, 3 data lengths */
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int pre_data_len = begin, sel_data_len = end - begin, post_data_len = 0; /* Determined from the other two */
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/* now fix the start locations & lengths according to the cursor's
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* position (i.e.: our page) */
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if (pre_data_len < this_page_start)
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pre_data_len = 0;
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else
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pre_data_len -= this_page_start;
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if (begin < this_page_start)
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begin = this_page_start;
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if (end < this_page_start)
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end = this_page_start;
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if (begin > this_page_end)
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begin = this_page_end;
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if (end > this_page_end)
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end = this_page_end;
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/* Now calculate the lengths */
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sel_data_len = end - begin;
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post_data_len = this_page_end - end;
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wattron(edit, A_REVERSE);
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mvwaddnstr(edit, y, begin - this_page_start,
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&fileptr->data[begin], sel_data_len);
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wattroff(edit, A_REVERSE);
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}
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#endif
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/* edit_add() takes care of the job of actually painting a line into
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* the edit window. Called only from update_line(). Expects a
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* converted-to-not-have-tabs line. */
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void edit_add(filestruct *fileptr, int yval, int start, int virt_cur_x,
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int virt_mark_beginx, int this_page)
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void edit_add(const filestruct *fileptr, int yval, int start
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#ifndef NANO_SMALL
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, int virt_mark_beginx, int virt_cur_x
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#endif
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)
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{
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#ifdef ENABLE_COLOR
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const colortype *tmpcolor = NULL;
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int k, paintlen;
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filestruct *e, *s;
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regoff_t ematch, smatch;
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#ifdef DEBUG
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fprintf(stderr, "Painting line %d, current is %d\n", fileptr->lineno,
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current->lineno);
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#endif
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/* Just paint the string in any case (we'll add color or reverse on
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just the text that needs it */
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mvwaddnstr(edit, yval, 0, &fileptr->data[start],
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get_page_end_virtual(this_page) - start + 1);
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mvwaddnstr(edit, yval, 0, &fileptr->data[start], COLS);
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#ifdef ENABLE_COLOR
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if (colorstrings != NULL)
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for (tmpcolor = colorstrings; tmpcolor != NULL;
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tmpcolor = tmpcolor->next) {
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if (colorstrings != NULL) {
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const colortype *tmpcolor = colorstrings;
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for (; tmpcolor != NULL; tmpcolor = tmpcolor->next) {
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int x_start;
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/* Starting column for mvwaddnstr. Zero-based. */
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int paintlen;
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/* number of chars to paint on this line. There are COLS
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* characters on a whole line. */
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regex_t start_regexp; /* Compiled search regexp */
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regmatch_t startmatch; /* match position for start_regexp*/
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regmatch_t endmatch; /* match position for end_regexp*/
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regcomp(&start_regexp, tmpcolor->start, REG_EXTENDED);
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if (tmpcolor->bright)
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wattron(edit, A_BOLD);
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wattron(edit, COLOR_PAIR(tmpcolor->pairnum));
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/* Two notes about regexec. Return value 0 means there is a
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* match. Also, rm_eo is the first non-matching character
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* after the match. */
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/* First case, tmpcolor is a single-line expression. */
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if (tmpcolor->end == NULL) {
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size_t k = 0;
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/* First, highlight all single-line regexes */
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k = start;
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regcomp(&color_regexp, tmpcolor->start, REG_EXTENDED);
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while (!regexec(&color_regexp, &fileptr->data[k], 1,
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colormatches, 0)) {
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if (colormatches[0].rm_eo - colormatches[0].rm_so < 1) {
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/* We increment k by rm_eo, to move past the end of the
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last match. Even though two matches may overlap, we
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want to ignore them, so that we can highlight C-strings
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correctly. */
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while (k < start + COLS) {
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/* Note the fifth parameter to regexec. It says not to
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* match the beginning-of-line character unless
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* k == 0. If regexec returns non-zero, there are
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* no more matches in the line. */
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if (regexec(&start_regexp, &fileptr->data[k], 1,
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&startmatch, k == 0 ? 0 : REG_NOTBOL))
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break;
|
||||
/* Translate the match to the beginning of the line. */
|
||||
startmatch.rm_so += k;
|
||||
startmatch.rm_eo += k;
|
||||
if (startmatch.rm_so == startmatch.rm_eo)
|
||||
statusbar(_("Refusing 0 length regex match"));
|
||||
break;
|
||||
}
|
||||
#ifdef DEBUG
|
||||
fprintf(stderr, _("Match! (%d chars) \"%s\"\n"),
|
||||
colormatches[0].rm_eo - colormatches[0].rm_so,
|
||||
&fileptr->data[k + colormatches[0].rm_so]);
|
||||
#endif
|
||||
if (colormatches[0].rm_so < COLS - 1) {
|
||||
if (tmpcolor->bright)
|
||||
wattron(edit, A_BOLD);
|
||||
wattron(edit, COLOR_PAIR(tmpcolor->pairnum));
|
||||
|
||||
if (colormatches[0].rm_eo + k <= COLS) {
|
||||
paintlen =
|
||||
colormatches[0].rm_eo - colormatches[0].rm_so;
|
||||
#ifdef DEBUG
|
||||
fprintf(stderr, _("paintlen (%d) = eo (%d) - so (%d)\n"),
|
||||
paintlen, colormatches[0].rm_eo, colormatches[0].rm_so);
|
||||
#endif
|
||||
|
||||
}
|
||||
else {
|
||||
paintlen = COLS - k - colormatches[0].rm_so - 1;
|
||||
#ifdef DEBUG
|
||||
fprintf(stderr, _("paintlen (%d) = COLS (%d) - k (%d), - rm.so (%d) - 1\n"),
|
||||
paintlen, COLS, k, colormatches[0].rm_so);
|
||||
#endif
|
||||
}
|
||||
|
||||
mvwaddnstr(edit, yval, colormatches[0].rm_so + k,
|
||||
&fileptr->data[k + colormatches[0].rm_so],
|
||||
paintlen);
|
||||
|
||||
}
|
||||
|
||||
if (tmpcolor->bright)
|
||||
wattroff(edit, A_BOLD);
|
||||
wattroff(edit, COLOR_PAIR(tmpcolor->pairnum));
|
||||
|
||||
k += colormatches[0].rm_eo;
|
||||
else if (startmatch.rm_so < start + COLS &&
|
||||
startmatch.rm_eo > start) {
|
||||
x_start = startmatch.rm_so - start;
|
||||
if (x_start < 0)
|
||||
x_start = 0;
|
||||
paintlen = startmatch.rm_eo - start - x_start;
|
||||
if (paintlen > COLS - x_start)
|
||||
paintlen = COLS - x_start;
|
||||
|
||||
assert(0 <= x_start && 0 < paintlen &&
|
||||
x_start + paintlen <= COLS);
|
||||
mvwaddnstr(edit, yval, x_start,
|
||||
fileptr->data + start + x_start, paintlen);
|
||||
}
|
||||
k = startmatch.rm_eo;
|
||||
}
|
||||
regfree(&color_regexp);
|
||||
} else {
|
||||
/* This is a multi-line regexp. There are two steps.
|
||||
* First, we have to see if the beginning of the line is
|
||||
* colored by a start on an earlier line, and an end on
|
||||
* this line or later.
|
||||
*
|
||||
* We find the first line before fileptr matching the
|
||||
* start. If every match on that line is followed by an
|
||||
* end, then go to step two. Otherwise, find the next line
|
||||
* after start_line matching the end. If that line is not
|
||||
* before fileptr, then paint the beginning of this line. */
|
||||
|
||||
}
|
||||
/* Now, if there's an 'end' somewhere below, and a 'start'
|
||||
somewhere above, things get really fun. We have to look
|
||||
down for an end, make sure there's not a start before
|
||||
the end after us, and then look up for a start,
|
||||
and see if there's an end after the start, before us :) */
|
||||
else {
|
||||
regex_t end_regexp; /* Compiled search regexp */
|
||||
const filestruct *start_line = fileptr->prev;
|
||||
/* the first line before fileptr matching start*/
|
||||
regoff_t start_col;
|
||||
/* where it starts in that line */
|
||||
const filestruct *end_line;
|
||||
int searched_later_lines = 0;
|
||||
/* Used in step 2. Have we looked for an end on
|
||||
* lines after fileptr? */
|
||||
|
||||
s = fileptr;
|
||||
while (s != NULL) {
|
||||
regcomp(&color_regexp, tmpcolor->start, REG_EXTENDED);
|
||||
if (!regexec
|
||||
(&color_regexp, s->data, 1, colormatches, 0)) {
|
||||
regfree(&color_regexp);
|
||||
break;
|
||||
}
|
||||
s = s->prev;
|
||||
regfree(&color_regexp);
|
||||
regcomp(&end_regexp, tmpcolor->end, REG_EXTENDED);
|
||||
|
||||
while (start_line != NULL &&
|
||||
regexec(&start_regexp, start_line->data, 1,
|
||||
&startmatch, 0)) {
|
||||
/* If there is an end on this line, there is no need
|
||||
* to look for starts on earlier lines. */
|
||||
if (!regexec(&end_regexp, start_line->data, 1,
|
||||
&endmatch, 0))
|
||||
goto step_two;
|
||||
start_line = start_line->prev;
|
||||
}
|
||||
/* No start found, so skip to the next step. */
|
||||
if (start_line == NULL)
|
||||
goto step_two;
|
||||
/* Now start_line is the first line before fileptr
|
||||
* containing a start match. Is there a start on this
|
||||
* line not followed by an end on this line? */
|
||||
|
||||
if (s != NULL) {
|
||||
/* We found a start, mark it */
|
||||
smatch = colormatches[0].rm_so;
|
||||
start_col = 0;
|
||||
while (1) {
|
||||
start_col += startmatch.rm_so;
|
||||
startmatch.rm_eo -= startmatch.rm_so;
|
||||
if (regexec(&end_regexp,
|
||||
start_line->data + start_col + startmatch.rm_eo,
|
||||
1, &endmatch,
|
||||
start_col + startmatch.rm_eo == 0 ? 0 : REG_NOTBOL))
|
||||
/* No end found after this start */
|
||||
break;
|
||||
start_col++;
|
||||
if (regexec(&start_regexp,
|
||||
start_line->data + start_col, 1, &startmatch,
|
||||
REG_NOTBOL))
|
||||
/* No later start on this line. */
|
||||
goto step_two;
|
||||
}
|
||||
/* Indeed, there is a start not followed on this line by an
|
||||
* end. */
|
||||
|
||||
e = s;
|
||||
while (e != NULL && e != fileptr) {
|
||||
regcomp(&color_regexp, tmpcolor->end, REG_EXTENDED);
|
||||
if (!regexec
|
||||
(&color_regexp, e->data, 1, colormatches, 0)) {
|
||||
regfree(&color_regexp);
|
||||
/* We have already checked that there is no end before
|
||||
* fileptr and after the start. Is there an end after
|
||||
* the start at all? We don't paint unterminated starts. */
|
||||
end_line = fileptr;
|
||||
while (end_line != NULL &&
|
||||
regexec(&end_regexp, end_line->data, 1,
|
||||
&endmatch, 0))
|
||||
end_line = end_line->next;
|
||||
|
||||
/* No end found, or it is too early. */
|
||||
if (end_line == NULL ||
|
||||
end_line->lineno < fileptr->lineno ||
|
||||
(end_line == fileptr && endmatch.rm_eo <= start))
|
||||
goto step_two;
|
||||
|
||||
/* Now paint the start of fileptr. */
|
||||
paintlen = end_line != fileptr
|
||||
? COLS : endmatch.rm_eo - start;
|
||||
if (paintlen > COLS)
|
||||
paintlen = COLS;
|
||||
|
||||
assert(0 < paintlen && paintlen <= COLS);
|
||||
mvwaddnstr(edit, yval, 0, fileptr->data + start, paintlen);
|
||||
|
||||
/* We have already painted the whole line. */
|
||||
if (paintlen == COLS)
|
||||
goto skip_step_two;
|
||||
|
||||
|
||||
step_two: /* Second step, we look for starts on this line. */
|
||||
start_col = 0;
|
||||
while (start_col < start + COLS) {
|
||||
if (regexec(&start_regexp, fileptr->data + start_col, 1,
|
||||
&startmatch, start_col == 0 ? 0 : REG_NOTBOL)
|
||||
|| start_col + startmatch.rm_so >= start + COLS)
|
||||
/* No more starts on this line. */
|
||||
break;
|
||||
/* Translate the match to be relative to the
|
||||
* beginning of the line. */
|
||||
startmatch.rm_so += start_col;
|
||||
startmatch.rm_eo += start_col;
|
||||
|
||||
x_start = startmatch.rm_so - start;
|
||||
if (x_start < 0) {
|
||||
x_start = 0;
|
||||
startmatch.rm_so = start;
|
||||
}
|
||||
if (!regexec(&end_regexp, fileptr->data + startmatch.rm_eo,
|
||||
1, &endmatch,
|
||||
startmatch.rm_eo == 0 ? 0 : REG_NOTBOL)) {
|
||||
/* Translate the end match to be relative to the
|
||||
beginning of the line. */
|
||||
endmatch.rm_so += startmatch.rm_eo;
|
||||
endmatch.rm_eo += startmatch.rm_eo;
|
||||
/* There is an end on this line. But does it
|
||||
appear on this page, and is the match more than
|
||||
zero characters long? */
|
||||
if (endmatch.rm_eo > start &&
|
||||
endmatch.rm_eo > startmatch.rm_so) {
|
||||
paintlen = endmatch.rm_eo - start - x_start;
|
||||
if (x_start + paintlen > COLS)
|
||||
paintlen = COLS - x_start;
|
||||
|
||||
assert(0 <= x_start && 0 < paintlen &&
|
||||
x_start + paintlen <= COLS);
|
||||
mvwaddnstr(edit, yval, x_start,
|
||||
fileptr->data + start + x_start, paintlen);
|
||||
}
|
||||
} else if (!searched_later_lines) {
|
||||
searched_later_lines = 1;
|
||||
/* There is no end on this line. But we haven't
|
||||
* yet looked for one on later lines. */
|
||||
end_line = fileptr->next;
|
||||
while (end_line != NULL &&
|
||||
regexec(&end_regexp, end_line->data, 1,
|
||||
&endmatch, 0))
|
||||
end_line = end_line->next;
|
||||
if (end_line != NULL) {
|
||||
assert(0 <= x_start && x_start < COLS);
|
||||
mvwaddnstr(edit, yval, x_start,
|
||||
fileptr->data + start + x_start,
|
||||
COLS - x_start);
|
||||
/* We painted to the end of the line, so
|
||||
* don't bother checking any more starts. */
|
||||
break;
|
||||
}
|
||||
e = e->next;
|
||||
regfree(&color_regexp);
|
||||
}
|
||||
start_col = startmatch.rm_so + 1;
|
||||
} /* while start_col < start + COLS */
|
||||
|
||||
if (e != fileptr)
|
||||
continue; /* There's an end before us */
|
||||
else { /* Keep looking for an end */
|
||||
while (e != NULL) {
|
||||
regcomp(&color_regexp, tmpcolor->end, REG_EXTENDED);
|
||||
if (!regexec
|
||||
(&color_regexp, e->data, 1, colormatches,
|
||||
0)) {
|
||||
regfree(&color_regexp);
|
||||
break;
|
||||
}
|
||||
e = e->next;
|
||||
regfree(&color_regexp);
|
||||
}
|
||||
|
||||
if (e == NULL)
|
||||
continue; /* There's no start before the end :) */
|
||||
else { /* Okay, we found an end, mark it! */
|
||||
ematch = colormatches[0].rm_eo;
|
||||
|
||||
while (e != NULL) {
|
||||
regcomp(&color_regexp, tmpcolor->end, REG_EXTENDED);
|
||||
if (!regexec
|
||||
(&color_regexp, e->data, 1,
|
||||
colormatches, 0)) {
|
||||
regfree(&color_regexp);
|
||||
break;
|
||||
} e = e->next;
|
||||
regfree(&color_regexp);
|
||||
}
|
||||
|
||||
if (e == NULL)
|
||||
continue; /* No end, oh well :) */
|
||||
|
||||
/* Didn't find another end, we must be in the
|
||||
middle of a highlighted bit */
|
||||
|
||||
if (tmpcolor->bright)
|
||||
wattron(edit, A_BOLD);
|
||||
|
||||
wattron(edit, COLOR_PAIR(tmpcolor->pairnum));
|
||||
|
||||
if (s == fileptr && e == fileptr && ematch < COLS) {
|
||||
mvwaddnstr(edit, yval, start + smatch,
|
||||
&fileptr->data[start + smatch],
|
||||
ematch - smatch);
|
||||
#ifdef DEBUG
|
||||
fprintf(stderr, _("start = %d, smatch = %d, ematch = %d\n"), start,
|
||||
smatch, ematch);
|
||||
#endif
|
||||
|
||||
} else if (s == fileptr)
|
||||
mvwaddnstr(edit, yval, start + smatch,
|
||||
&fileptr->data[start + smatch],
|
||||
COLS - smatch);
|
||||
else if (e == fileptr)
|
||||
mvwaddnstr(edit, yval, start,
|
||||
&fileptr->data[start],
|
||||
COLS - start);
|
||||
else
|
||||
mvwaddnstr(edit, yval, start,
|
||||
&fileptr->data[start],
|
||||
COLS);
|
||||
|
||||
if (tmpcolor->bright)
|
||||
wattroff(edit, A_BOLD);
|
||||
|
||||
wattroff(edit, COLOR_PAIR(tmpcolor->pairnum));
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* Else go to the next string, yahoo! =) */
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
skip_step_two:
|
||||
regfree(&end_regexp);
|
||||
} /* if (tmp_color->end != NULL) */
|
||||
|
||||
regfree(&start_regexp);
|
||||
wattroff(edit, A_BOLD);
|
||||
wattroff(edit, COLOR_PAIR(tmpcolor->pairnum));
|
||||
} /* for tmpcolor in colorstrings */
|
||||
}
|
||||
#endif /* ENABLE_COLOR */
|
||||
|
||||
#ifndef NANO_SMALL
|
||||
if (ISSET(MARK_ISSET)
|
||||
&& (fileptr->lineno <= mark_beginbuf->lineno
|
||||
|| fileptr->lineno <= current->lineno)
|
||||
&& (fileptr->lineno >= mark_beginbuf->lineno
|
||||
|| fileptr->lineno >= current->lineno)) {
|
||||
/* fileptr is at least partially selected. */
|
||||
|
||||
/* There are quite a few cases that could take place; we'll deal
|
||||
* with them each in turn */
|
||||
if (ISSET(MARK_ISSET) &&
|
||||
!((fileptr->lineno > mark_beginbuf->lineno
|
||||
&& fileptr->lineno > current->lineno)
|
||||
|| (fileptr->lineno < mark_beginbuf->lineno
|
||||
&& fileptr->lineno < current->lineno))) {
|
||||
/* If we get here we are on a line that is at least
|
||||
* partially selected. The lineno checks above determined
|
||||
* that */
|
||||
if (fileptr != mark_beginbuf && fileptr != current) {
|
||||
/* We are on a completely marked line, paint it all
|
||||
* inverse */
|
||||
int x_start;
|
||||
/* Starting column for mvwaddnstr. Zero-based. */
|
||||
int paintlen;
|
||||
/* number of chars to paint on this line. There are COLS
|
||||
* characters on a whole line. */
|
||||
|
||||
if (mark_beginbuf == fileptr && current == fileptr) {
|
||||
x_start = virt_mark_beginx < virt_cur_x ? virt_mark_beginx
|
||||
: virt_cur_x;
|
||||
paintlen = abs(virt_mark_beginx - virt_cur_x);
|
||||
} else {
|
||||
if (mark_beginbuf->lineno < fileptr->lineno ||
|
||||
current->lineno < fileptr->lineno)
|
||||
x_start = 0;
|
||||
else
|
||||
x_start = mark_beginbuf == fileptr ? virt_mark_beginx
|
||||
: virt_cur_x;
|
||||
|
||||
if (mark_beginbuf->lineno > fileptr->lineno ||
|
||||
current->lineno > fileptr->lineno)
|
||||
paintlen = start + COLS;
|
||||
else
|
||||
paintlen = mark_beginbuf == fileptr ? virt_mark_beginx
|
||||
: virt_cur_x;
|
||||
}
|
||||
x_start -= start;
|
||||
if (x_start < 0) {
|
||||
paintlen += x_start;
|
||||
x_start = 0;
|
||||
}
|
||||
if (x_start + paintlen > COLS)
|
||||
paintlen = COLS - x_start;
|
||||
if (paintlen > 0) {
|
||||
wattron(edit, A_REVERSE);
|
||||
|
||||
mvwaddnstr(edit, yval, 0, fileptr->data, COLS);
|
||||
|
||||
assert(x_start >= 0 && paintlen > 0 && x_start + paintlen <= COLS);
|
||||
mvwaddnstr(edit, yval, x_start,
|
||||
fileptr->data + start + x_start, paintlen);
|
||||
wattroff(edit, A_REVERSE);
|
||||
|
||||
} else if (fileptr == mark_beginbuf && fileptr == current) {
|
||||
/* Special case, we're still on the same line we started
|
||||
* marking -- so we call our helper function */
|
||||
if (virt_cur_x < virt_mark_beginx) {
|
||||
/* To the right of us is marked */
|
||||
add_marked_sameline(virt_cur_x, virt_mark_beginx,
|
||||
fileptr, yval, virt_cur_x, this_page);
|
||||
} else {
|
||||
/* To the left of us is marked */
|
||||
add_marked_sameline(virt_mark_beginx, virt_cur_x,
|
||||
fileptr, yval, virt_cur_x, this_page);
|
||||
}
|
||||
} else if (fileptr == mark_beginbuf) {
|
||||
/*
|
||||
* We're updating the line that was first marked,
|
||||
* but we're not currently on it. So we want to
|
||||
* figure out which half to invert based on our
|
||||
* relative line numbers.
|
||||
*
|
||||
* I.e. if we're above the "beginbuf" line, we want to
|
||||
* mark the left side. Otherwise, we're below, so we
|
||||
* mark the right.
|
||||
*/
|
||||
int target;
|
||||
|
||||
if (mark_beginbuf->lineno > current->lineno) {
|
||||
|
||||
wattron(edit, A_REVERSE);
|
||||
|
||||
target =
|
||||
(virt_mark_beginx <
|
||||
COLS - 1) ? virt_mark_beginx : COLS - 1;
|
||||
|
||||
mvwaddnstr(edit, yval, 0, fileptr->data, target);
|
||||
|
||||
wattroff(edit, A_REVERSE);
|
||||
|
||||
}
|
||||
|
||||
if (mark_beginbuf->lineno < current->lineno) {
|
||||
|
||||
wattron(edit, A_REVERSE);
|
||||
target = (COLS - 1) - virt_mark_beginx;
|
||||
|
||||
if (target < 0)
|
||||
target = 0;
|
||||
|
||||
mvwaddnstr(edit, yval, virt_mark_beginx,
|
||||
&fileptr->data[virt_mark_beginx], target);
|
||||
|
||||
wattroff(edit, A_REVERSE);
|
||||
}
|
||||
|
||||
} else if (fileptr == current) {
|
||||
/* We're on the cursor's line, but it's not the first
|
||||
* one we marked. Similar to the previous logic. */
|
||||
int this_page_start = get_page_start_virtual(this_page),
|
||||
this_page_end = get_page_end_virtual(this_page);
|
||||
|
||||
if (mark_beginbuf->lineno < current->lineno) {
|
||||
|
||||
wattron(edit, A_REVERSE);
|
||||
|
||||
if (virt_cur_x > COLS - 2) {
|
||||
mvwaddnstr(edit, yval, 0,
|
||||
&fileptr->data[this_page_start],
|
||||
virt_cur_x - this_page_start);
|
||||
} else
|
||||
mvwaddnstr(edit, yval, 0, fileptr->data, virt_cur_x);
|
||||
|
||||
wattroff(edit, A_REVERSE);
|
||||
|
||||
}
|
||||
|
||||
if (mark_beginbuf->lineno > current->lineno) {
|
||||
|
||||
wattron(edit, A_REVERSE);
|
||||
if (virt_cur_x > COLS - 2)
|
||||
mvwaddnstr(edit, yval, virt_cur_x - this_page_start,
|
||||
&fileptr->data[virt_cur_x],
|
||||
this_page_end - virt_cur_x);
|
||||
else
|
||||
mvwaddnstr(edit, yval, virt_cur_x,
|
||||
&fileptr->data[virt_cur_x],
|
||||
COLS - virt_cur_x);
|
||||
|
||||
wattroff(edit, A_REVERSE);
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* !NANO_SMALL */
|
||||
}
|
||||
|
||||
/*
|
||||
* Just update one line in the edit buffer. Basically a wrapper for
|
||||
* edit_add(). index gives us a place in the string to update starting
|
||||
* from. Likely args are current_x or 0.
|
||||
*/
|
||||
/* Just update one line in the edit buffer. Basically a wrapper for
|
||||
* edit_add(). If fileptr != current, then index is considered 0.
|
||||
* The line will be displayed starting with fileptr->data[index].
|
||||
* Likely args are current_x or 0. */
|
||||
void update_line(filestruct *fileptr, int index)
|
||||
{
|
||||
filestruct *filetmp;
|
||||
int line = 0, col = 0;
|
||||
int virt_cur_x = current_x, virt_mark_beginx = mark_beginx;
|
||||
char *realdata, *tmp;
|
||||
int i, pos, len, page;
|
||||
int line;
|
||||
/* line in the edit window for CURSES calls */
|
||||
#ifndef NANO_SMALL
|
||||
int virt_cur_x;
|
||||
int virt_mark_beginx;
|
||||
#endif
|
||||
char *original;
|
||||
/* The original string fileptr->data. */
|
||||
char *converted;
|
||||
/* fileptr->data converted to have tabs and control characters
|
||||
* expanded. */
|
||||
size_t pos;
|
||||
size_t page_start;
|
||||
|
||||
if (!fileptr)
|
||||
return;
|
||||
|
||||
/* First, blank out the line (at a minimum) */
|
||||
for (filetmp = edittop; filetmp != fileptr && filetmp != editbot;
|
||||
filetmp = filetmp->next)
|
||||
line++;
|
||||
line = fileptr->lineno - edittop->lineno;
|
||||
|
||||
/* We assume the line numbers are valid. Is that really true? */
|
||||
assert(line < 0 || line == check_linenumbers(fileptr));
|
||||
|
||||
if (line < 0 || line >= editwinrows)
|
||||
return;
|
||||
|
||||
/* First, blank out the line (at a minimum) */
|
||||
mvwaddstr(edit, line, 0, hblank);
|
||||
|
||||
/* Next, convert all the tabs to spaces, so everything else is easy */
|
||||
index = xpt(fileptr, index);
|
||||
|
||||
realdata = fileptr->data;
|
||||
len = strlen(realdata);
|
||||
fileptr->data = charalloc(xpt(fileptr, len) + 1);
|
||||
original = fileptr->data;
|
||||
converted = charalloc(strlenpt(original) + 1);
|
||||
|
||||
/* Next, convert all the tabs to spaces, so everything else is easy.
|
||||
* Note the internal speller sends us index == -1. */
|
||||
index = fileptr == current && index > 0 ? strnlenpt(original, index) : 0;
|
||||
#ifndef NANO_SMALL
|
||||
virt_cur_x = fileptr == current ? strnlenpt(original, current_x) : current_x;
|
||||
virt_mark_beginx = fileptr == mark_beginbuf ? strnlenpt(original, mark_beginx) : mark_beginx;
|
||||
#endif
|
||||
|
||||
pos = 0;
|
||||
for (i = 0; i < len; i++) {
|
||||
if (realdata[i] == '\t') {
|
||||
for (; *original != '\0'; original++) {
|
||||
if (*original == '\t')
|
||||
do {
|
||||
fileptr->data[pos++] = ' ';
|
||||
if (i < current_x)
|
||||
virt_cur_x++;
|
||||
if (i < mark_beginx)
|
||||
virt_mark_beginx++;
|
||||
converted[pos++] = ' ';
|
||||
} while (pos % tabsize);
|
||||
/* must decrement once to account for tab-is-one-character */
|
||||
if (i < current_x)
|
||||
virt_cur_x--;
|
||||
if (i < mark_beginx)
|
||||
virt_mark_beginx--;
|
||||
} else if (realdata[i] == 127) {
|
||||
/* Treat delete characters (ASCII 127's) as ^?'s */
|
||||
fileptr->data[pos++] = '^';
|
||||
fileptr->data[pos++] = '?';
|
||||
if (i < current_x)
|
||||
virt_cur_x++;
|
||||
if (i < mark_beginx)
|
||||
virt_mark_beginx++;
|
||||
} else if (realdata[i] == 10) {
|
||||
/* Treat newlines (ASCII 10's) embedded in a line as encoded
|
||||
nulls (ASCII 0's); the line in question should be run
|
||||
through unsunder() before reaching here */
|
||||
fileptr->data[pos++] = '^';
|
||||
fileptr->data[pos++] = '@';
|
||||
if (i < current_x)
|
||||
virt_cur_x++;
|
||||
if (i < mark_beginx)
|
||||
virt_mark_beginx++;
|
||||
} else if (is_cntrl_char(realdata[i])) {
|
||||
/* Treat control characters as ^symbol's */
|
||||
fileptr->data[pos++] = '^';
|
||||
fileptr->data[pos++] = realdata[i] + 64;
|
||||
if (i < current_x)
|
||||
virt_cur_x++;
|
||||
if (i < mark_beginx)
|
||||
virt_mark_beginx++;
|
||||
} else {
|
||||
fileptr->data[pos++] = realdata[i];
|
||||
}
|
||||
else if (is_cntrl_char(*original)) {
|
||||
converted[pos++] = '^';
|
||||
if (*original == 127)
|
||||
converted[pos++] = '?';
|
||||
else if (*original == '\n')
|
||||
/* Treat newlines (ASCII 10's) embedded in a line as encoded
|
||||
* nulls (ASCII 0's); the line in question should be run
|
||||
* through unsunder() before reaching here */
|
||||
converted[pos++] = '@';
|
||||
else
|
||||
converted[pos++] = *original + 64;
|
||||
} else
|
||||
converted[pos++] = *original;
|
||||
}
|
||||
|
||||
fileptr->data[pos] = '\0';
|
||||
converted[pos] = '\0';
|
||||
|
||||
/* Now, paint the line */
|
||||
if (current == fileptr && index > COLS - 2) {
|
||||
/* This handles when the current line is beyond COLS */
|
||||
/* It requires figuring out what page we're on */
|
||||
page = get_page_from_virtual(index);
|
||||
col = get_page_start_virtual(page);
|
||||
original = fileptr->data;
|
||||
fileptr->data = converted;
|
||||
page_start = get_page_start(index);
|
||||
edit_add(fileptr, line, page_start
|
||||
#ifndef NANO_SMALL
|
||||
, virt_mark_beginx, virt_cur_x
|
||||
#endif
|
||||
);
|
||||
free(converted);
|
||||
fileptr->data = original;
|
||||
|
||||
edit_add(filetmp, line, col, virt_cur_x, virt_mark_beginx, page);
|
||||
if (page_start > 0)
|
||||
mvwaddch(edit, line, 0, '$');
|
||||
|
||||
if (strlenpt(fileptr->data) > get_page_end_virtual(page) + 1)
|
||||
mvwaddch(edit, line, COLS - 1, '$');
|
||||
} else {
|
||||
/* It's not the current line means that it's at x=0 and page=1 */
|
||||
/* If it is the current line, then we're in the same boat */
|
||||
edit_add(filetmp, line, 0, virt_cur_x, virt_mark_beginx, 1);
|
||||
|
||||
if (strlenpt(&filetmp->data[col]) > COLS)
|
||||
mvwaddch(edit, line, COLS - 1, '$');
|
||||
}
|
||||
|
||||
/* Clean up our mess */
|
||||
tmp = fileptr->data;
|
||||
fileptr->data = realdata;
|
||||
free(tmp);
|
||||
if (pos > page_start + COLS)
|
||||
mvwaddch(edit, line, COLS - 1, '$');
|
||||
}
|
||||
|
||||
/* This function updates current, based on where current_y is;
|
||||
|
|
@ -1151,7 +1013,7 @@ void edit_refresh(void)
|
|||
if (edittop == NULL)
|
||||
edittop = current;
|
||||
|
||||
/* Don't make the cursor jump around the scrrn whilst updating */
|
||||
/* Don't make the cursor jump around the screen whilst updating */
|
||||
leaveok(edit, TRUE);
|
||||
|
||||
editbot = edittop;
|
||||
|
|
|
|||
Loading…
Reference in New Issue