tweaks: move an initialization function to before the one that calls it
Also, frob two comments in that function, and delete three unneeded blank lines.master
Benno Schulenberg
parent
940a17268b
commit
29d493a986
556
src/help.c
556
src/help.c
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@ -29,16 +29,290 @@
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static char *help_text = NULL;
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/* The text displayed in the help window. */
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static const char *start_of_body = NULL;
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/* The point in the help text just after the title. */
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static char *end_of_intro = NULL;
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/* The point in the help text where the shortcut descriptions begin. */
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static size_t location;
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/* The offset (in bytes) of the topleft of the shown help text. */
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/* Allocate space for the help text for the current menu,
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* and concatenate the different pieces of text into it. */
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void help_init(void)
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{
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size_t allocsize = 0;
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/* Space needed for help_text. */
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const char *htx[3];
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/* Untranslated help introduction. We break it up into three chunks
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* in case the full string is too long for the compiler to handle. */
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const funcstruct *f;
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const keystruct *s;
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char *ptr;
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/* First, set up the initial help text for the current function. */
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if (currmenu == MWHEREIS || currmenu == MREPLACE || currmenu == MREPLACEWITH) {
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htx[0] = N_("Search Command Help Text\n\n "
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"Enter the words or characters you would like to "
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"search for, and then press Enter. If there is a "
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"match for the text you entered, the screen will be "
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"updated to the location of the nearest match for the "
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"search string.\n\n The previous search string will be "
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"shown in brackets after the search prompt. Hitting "
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"Enter without entering any text will perform the "
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"previous search. ");
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htx[1] = N_("If you have selected text with the mark and then "
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"search to replace, only matches in the selected text "
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"will be replaced.\n\n The following function keys are "
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"available in Search mode:\n\n");
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htx[2] = NULL;
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} else if (currmenu == MGOTOLINE) {
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htx[0] = N_("Go To Line Help Text\n\n "
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"Enter the line number that you wish to go to and hit "
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"Enter. If there are fewer lines of text than the "
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"number you entered, you will be brought to the last "
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"line of the file.\n\n The following function keys are "
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"available in Go To Line mode:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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} else if (currmenu == MINSERTFILE) {
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htx[0] = N_("Insert File Help Text\n\n "
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"Type in the name of a file to be inserted into the "
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"current file buffer at the current cursor "
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"location.\n\n If you have compiled nano with multiple "
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"file buffer support, and enable multiple file buffers "
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"with the -F or --multibuffer command line flags, the "
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"Meta-F toggle, or a nanorc file, inserting a file "
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"will cause it to be loaded into a separate buffer "
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"(use Meta-< and > to switch between file buffers). ");
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htx[1] = N_("If you need another blank buffer, do not enter "
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"any filename, or type in a nonexistent filename at "
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"the prompt and press Enter.\n\n The following "
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"function keys are available in Insert File mode:\n\n");
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htx[2] = NULL;
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} else if (currmenu == MWRITEFILE) {
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htx[0] = N_("Write File Help Text\n\n "
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"Type the name that you wish to save the current file "
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"as and press Enter to save the file.\n\n If you have "
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"selected text with the mark, you will be prompted to "
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"save only the selected portion to a separate file. To "
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"reduce the chance of overwriting the current file with "
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"just a portion of it, the current filename is not the "
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"default in this mode.\n\n The following function keys "
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"are available in Write File mode:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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}
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#ifdef ENABLE_BROWSER
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else if (currmenu == MBROWSER) {
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htx[0] = N_("File Browser Help Text\n\n "
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"The file browser is used to visually browse the "
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"directory structure to select a file for reading "
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"or writing. You may use the arrow keys or Page Up/"
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"Down to browse through the files, and S or Enter to "
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"choose the selected file or enter the selected "
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"directory. To move up one level, select the "
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"directory called \"..\" at the top of the file "
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"list.\n\n The following function keys are available "
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"in the file browser:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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} else if (currmenu == MWHEREISFILE) {
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htx[0] = N_("Browser Search Command Help Text\n\n "
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"Enter the words or characters you would like to "
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"search for, and then press Enter. If there is a "
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"match for the text you entered, the screen will be "
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"updated to the location of the nearest match for the "
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"search string.\n\n The previous search string will be "
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"shown in brackets after the search prompt. Hitting "
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"Enter without entering any text will perform the "
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"previous search.\n\n");
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htx[1] = N_(" The following function keys are available in "
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"Browser Search mode:\n\n");
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htx[2] = NULL;
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} else if (currmenu == MGOTODIR) {
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htx[0] = N_("Browser Go To Directory Help Text\n\n "
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"Enter the name of the directory you would like to "
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"browse to.\n\n If tab completion has not been "
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"disabled, you can use the Tab key to (attempt to) "
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"automatically complete the directory name.\n\n The "
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"following function keys are available in Browser Go "
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"To Directory mode:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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}
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#endif /* ENABLE_BROWSER */
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#ifdef ENABLE_SPELLER
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else if (currmenu == MSPELL) {
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htx[0] = N_("Spell Check Help Text\n\n "
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"The spell checker checks the spelling of all text in "
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"the current file. When an unknown word is "
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"encountered, it is highlighted and a replacement can "
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"be edited. It will then prompt to replace every "
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"instance of the given misspelled word in the current "
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"file, or, if you have selected text with the mark, in "
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"the selected text.\n\n The following function keys "
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"are available in Spell Check mode:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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}
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#endif /* ENABLE_SPELLER */
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#ifndef NANO_TINY
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else if (currmenu == MEXECUTE) {
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htx[0] = N_("Execute Command Help Text\n\n "
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"This mode allows you to insert the output of a "
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"command run by the shell into the current buffer (or "
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"into a new buffer). If the command is preceded by '|' "
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"(the pipe symbol), the current contents of the buffer "
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"(or marked region) will be piped to the command. ");
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htx[1] = N_("If you just need another blank buffer, do not enter any "
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"command.\n\n You can also pick one of four tools, or cut a "
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"large piece of the buffer, or put the editor to sleep.\n\n");
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htx[2] = N_(" The following function keys are "
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"available in Execute Command mode:\n\n");
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} else if (currmenu == MLINTER) {
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htx[0] = N_("=== Linter ===\n\n "
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"In this mode, the status bar shows an error message or "
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"warning, and the cursor is put at the corresponding "
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"position in the file. With PageUp and PageDown you "
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"can switch to earlier and later messages.\n\n");
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htx[1] = N_(" The following function keys are "
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"available in Linter mode:\n\n");
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htx[2] = NULL;
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}
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#endif /* !NANO_TINY */
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else {
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/* Default to the main help list. */
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htx[0] = N_("Main nano help text\n\n "
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"The nano editor is designed to emulate the "
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"functionality and ease-of-use of the UW Pico text "
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"editor. There are four main sections of the editor. "
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"The top line shows the program version, the current "
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"filename being edited, and whether or not the file "
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"has been modified. Next is the main editor window "
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"showing the file being edited. The status line is "
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"the third line from the bottom and shows important "
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"messages. ");
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htx[1] = N_("The bottom two lines show the most commonly used "
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"shortcuts in the editor.\n\n Shortcuts are written as "
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"follows: Control-key sequences are notated with a '^' "
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"and can be entered either by using the Ctrl key or "
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"pressing the Esc key twice. Meta-key sequences are "
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"notated with 'M-' and can be entered using either the "
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"Alt, Cmd, or Esc key, depending on your keyboard setup. ");
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htx[2] = N_("Also, pressing Esc twice and then typing a "
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"three-digit decimal number from 000 to 255 will enter "
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"the character with the corresponding value. The "
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"following keystrokes are available in the main editor "
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"window. Alternative keys are shown in "
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"parentheses:\n\n");
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}
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htx[0] = _(htx[0]);
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if (htx[1] != NULL)
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htx[1] = _(htx[1]);
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if (htx[2] != NULL)
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htx[2] = _(htx[2]);
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allocsize += strlen(htx[0]);
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if (htx[1] != NULL)
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allocsize += strlen(htx[1]);
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if (htx[2] != NULL)
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allocsize += strlen(htx[2]);
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/* Calculate the length of the descriptions of the shortcuts.
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* Each entry has one or two keystrokes, which fill 17 cells,
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* plus translated text, plus one or two \n's. */
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for (f = allfuncs; f != NULL; f = f->next)
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if (f->menus & currmenu)
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allocsize += strlen(_(f->help)) + 21;
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#ifndef NANO_TINY
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/* If we're on the main list, we also count the toggle help text.
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* Each entry has "M-%c\t\t ", six chars which fill 17 cells, plus
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* two translated texts, plus a space, plus one or two '\n's. */
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if (currmenu == MMAIN) {
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size_t onoff_len = strlen(_("enable/disable"));
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for (s = sclist; s != NULL; s = s->next)
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if (s->func == do_toggle_void)
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allocsize += strlen(_(flagtostr(s->toggle))) + onoff_len + 9;
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}
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#endif
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/* Allocate memory for the help text. */
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help_text = charalloc(allocsize + 1);
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/* Now add the text we want. */
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strcpy(help_text, htx[0]);
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if (htx[1] != NULL)
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strcat(help_text, htx[1]);
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if (htx[2] != NULL)
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strcat(help_text, htx[2]);
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/* Remember this end-of-introduction, start-of-shortcuts. */
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end_of_intro = help_text + strlen(help_text);
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ptr = end_of_intro;
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/* Now add the shortcuts and their descriptions. */
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for (f = allfuncs; f != NULL; f = f->next) {
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int tally = 0;
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if ((f->menus & currmenu) == 0)
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continue;
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/* Show the first two shortcuts (if any) for each function. */
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for (s = sclist; s != NULL; s = s->next) {
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if ((s->menus & currmenu) && s->func == f->func && s->keystr[0]) {
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/* Make the first column 7 cells wide and the second 10. */
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if (++tally == 1) {
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sprintf(ptr, "%s ", s->keystr);
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/* Unicode arrows take three bytes instead of one. */
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ptr += (strstr(s->keystr, "\xE2") != NULL ? 9 : 7);
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} else {
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sprintf(ptr, "(%s) ", s->keystr);
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ptr += (strstr(s->keystr, "\xE2") != NULL ? 12 : 10);
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break;
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}
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}
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}
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if (tally == 0)
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ptr += sprintf(ptr, "\t\t ");
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else if (tally == 1)
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ptr += 10;
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/* The shortcut's description. */
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ptr += sprintf(ptr, "%s\n", _(f->help));
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if (f->blank_after)
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ptr += sprintf(ptr, "\n");
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}
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#ifndef NANO_TINY
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/* And the toggles... */
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if (currmenu == MMAIN) {
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int maximum = 0, counter = 0;
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/* First see how many toggles there are. */
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for (s = sclist; s != NULL; s = s->next)
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maximum = (s->toggle && s->ordinal > maximum) ? s->ordinal : maximum;
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/* Now show them in the original order. */
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while (counter < maximum) {
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counter++;
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for (s = sclist; s != NULL; s = s->next)
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if (s->toggle && s->ordinal == counter) {
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ptr += sprintf(ptr, "%s\t\t %s %s\n", (s->menus == MMAIN ? s->keystr : ""),
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_(flagtostr(s->toggle)), _("enable/disable"));
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if (s->toggle == NO_SYNTAX || s->toggle == TABS_TO_SPACES)
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ptr += sprintf(ptr, "\n");
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break;
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}
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}
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}
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#endif /* !NANO_TINY */
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}
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/* Hard-wrap the concatenated help text, and write it into a new buffer. */
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void wrap_help_text_into_buffer(void)
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{
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@ -286,282 +560,6 @@ void show_help(void)
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}
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}
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/* Allocate space for the help text for the current menu, and concatenate
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* the different pieces of text into it. */
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void help_init(void)
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{
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size_t allocsize = 0;
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/* Space needed for help_text. */
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const char *htx[3];
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/* Untranslated help introduction. We break it up into three chunks
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* in case the full string is too long for the compiler to handle. */
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char *ptr;
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const funcstruct *f;
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const keystruct *s;
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/* First, set up the initial help text for the current function. */
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if (currmenu == MWHEREIS || currmenu == MREPLACE || currmenu == MREPLACEWITH) {
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htx[0] = N_("Search Command Help Text\n\n "
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"Enter the words or characters you would like to "
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"search for, and then press Enter. If there is a "
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"match for the text you entered, the screen will be "
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"updated to the location of the nearest match for the "
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"search string.\n\n The previous search string will be "
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"shown in brackets after the search prompt. Hitting "
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"Enter without entering any text will perform the "
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"previous search. ");
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htx[1] = N_("If you have selected text with the mark and then "
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"search to replace, only matches in the selected text "
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"will be replaced.\n\n The following function keys are "
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"available in Search mode:\n\n");
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htx[2] = NULL;
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} else if (currmenu == MGOTOLINE) {
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htx[0] = N_("Go To Line Help Text\n\n "
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"Enter the line number that you wish to go to and hit "
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"Enter. If there are fewer lines of text than the "
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"number you entered, you will be brought to the last "
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"line of the file.\n\n The following function keys are "
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"available in Go To Line mode:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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} else if (currmenu == MINSERTFILE) {
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htx[0] = N_("Insert File Help Text\n\n "
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"Type in the name of a file to be inserted into the "
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"current file buffer at the current cursor "
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"location.\n\n If you have compiled nano with multiple "
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"file buffer support, and enable multiple file buffers "
|
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"with the -F or --multibuffer command line flags, the "
|
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"Meta-F toggle, or a nanorc file, inserting a file "
|
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"will cause it to be loaded into a separate buffer "
|
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"(use Meta-< and > to switch between file buffers). ");
|
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htx[1] = N_("If you need another blank buffer, do not enter "
|
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"any filename, or type in a nonexistent filename at "
|
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"the prompt and press Enter.\n\n The following "
|
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"function keys are available in Insert File mode:\n\n");
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htx[2] = NULL;
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} else if (currmenu == MWRITEFILE) {
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htx[0] = N_("Write File Help Text\n\n "
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"Type the name that you wish to save the current file "
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"as and press Enter to save the file.\n\n If you have "
|
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"selected text with the mark, you will be prompted to "
|
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"save only the selected portion to a separate file. To "
|
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"reduce the chance of overwriting the current file with "
|
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"just a portion of it, the current filename is not the "
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"default in this mode.\n\n The following function keys "
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"are available in Write File mode:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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}
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#ifdef ENABLE_BROWSER
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else if (currmenu == MBROWSER) {
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htx[0] = N_("File Browser Help Text\n\n "
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"The file browser is used to visually browse the "
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"directory structure to select a file for reading "
|
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"or writing. You may use the arrow keys or Page Up/"
|
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"Down to browse through the files, and S or Enter to "
|
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"choose the selected file or enter the selected "
|
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"directory. To move up one level, select the "
|
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"directory called \"..\" at the top of the file "
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"list.\n\n The following function keys are available "
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"in the file browser:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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} else if (currmenu == MWHEREISFILE) {
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htx[0] = N_("Browser Search Command Help Text\n\n "
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"Enter the words or characters you would like to "
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"search for, and then press Enter. If there is a "
|
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"match for the text you entered, the screen will be "
|
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"updated to the location of the nearest match for the "
|
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"search string.\n\n The previous search string will be "
|
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"shown in brackets after the search prompt. Hitting "
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"Enter without entering any text will perform the "
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"previous search.\n\n");
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htx[1] = N_(" The following function keys are available in "
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"Browser Search mode:\n\n");
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htx[2] = NULL;
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} else if (currmenu == MGOTODIR) {
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htx[0] = N_("Browser Go To Directory Help Text\n\n "
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"Enter the name of the directory you would like to "
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"browse to.\n\n If tab completion has not been "
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"disabled, you can use the Tab key to (attempt to) "
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"automatically complete the directory name.\n\n The "
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"following function keys are available in Browser Go "
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"To Directory mode:\n\n");
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htx[1] = NULL;
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htx[2] = NULL;
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}
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#endif /* ENABLE_BROWSER */
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#ifdef ENABLE_SPELLER
|
||||
else if (currmenu == MSPELL) {
|
||||
htx[0] = N_("Spell Check Help Text\n\n "
|
||||
"The spell checker checks the spelling of all text in "
|
||||
"the current file. When an unknown word is "
|
||||
"encountered, it is highlighted and a replacement can "
|
||||
"be edited. It will then prompt to replace every "
|
||||
"instance of the given misspelled word in the current "
|
||||
"file, or, if you have selected text with the mark, in "
|
||||
"the selected text.\n\n The following function keys "
|
||||
"are available in Spell Check mode:\n\n");
|
||||
htx[1] = NULL;
|
||||
htx[2] = NULL;
|
||||
}
|
||||
#endif /* ENABLE_SPELLER */
|
||||
#ifndef NANO_TINY
|
||||
else if (currmenu == MEXECUTE) {
|
||||
htx[0] = N_("Execute Command Help Text\n\n "
|
||||
"This mode allows you to insert the output of a "
|
||||
"command run by the shell into the current buffer (or "
|
||||
"into a new buffer). If the command is preceded by '|' "
|
||||
"(the pipe symbol), the current contents of the buffer "
|
||||
"(or marked region) will be piped to the command. ");
|
||||
htx[1] = N_("If you just need another blank buffer, do not enter any "
|
||||
"command.\n\n You can also pick one of four tools, or cut a "
|
||||
"large piece of the buffer, or put the editor to sleep.\n\n");
|
||||
htx[2] = N_(" The following function keys are "
|
||||
"available in Execute Command mode:\n\n");
|
||||
} else if (currmenu == MLINTER) {
|
||||
htx[0] = N_("=== Linter ===\n\n "
|
||||
"In this mode, the status bar shows an error message or "
|
||||
"warning, and the cursor is put at the corresponding "
|
||||
"position in the file. With PageUp and PageDown you "
|
||||
"can switch to earlier and later messages.\n\n");
|
||||
htx[1] = N_(" The following function keys are "
|
||||
"available in Linter mode:\n\n");
|
||||
htx[2] = NULL;
|
||||
}
|
||||
#endif /* !NANO_TINY */
|
||||
else {
|
||||
/* Default to the main help list. */
|
||||
htx[0] = N_("Main nano help text\n\n "
|
||||
"The nano editor is designed to emulate the "
|
||||
"functionality and ease-of-use of the UW Pico text "
|
||||
"editor. There are four main sections of the editor. "
|
||||
"The top line shows the program version, the current "
|
||||
"filename being edited, and whether or not the file "
|
||||
"has been modified. Next is the main editor window "
|
||||
"showing the file being edited. The status line is "
|
||||
"the third line from the bottom and shows important "
|
||||
"messages. ");
|
||||
htx[1] = N_("The bottom two lines show the most commonly used "
|
||||
"shortcuts in the editor.\n\n Shortcuts are written as "
|
||||
"follows: Control-key sequences are notated with a '^' "
|
||||
"and can be entered either by using the Ctrl key or "
|
||||
"pressing the Esc key twice. Meta-key sequences are "
|
||||
"notated with 'M-' and can be entered using either the "
|
||||
"Alt, Cmd, or Esc key, depending on your keyboard setup. ");
|
||||
htx[2] = N_("Also, pressing Esc twice and then typing a "
|
||||
"three-digit decimal number from 000 to 255 will enter "
|
||||
"the character with the corresponding value. The "
|
||||
"following keystrokes are available in the main editor "
|
||||
"window. Alternative keys are shown in "
|
||||
"parentheses:\n\n");
|
||||
}
|
||||
|
||||
htx[0] = _(htx[0]);
|
||||
if (htx[1] != NULL)
|
||||
htx[1] = _(htx[1]);
|
||||
if (htx[2] != NULL)
|
||||
htx[2] = _(htx[2]);
|
||||
|
||||
allocsize += strlen(htx[0]);
|
||||
if (htx[1] != NULL)
|
||||
allocsize += strlen(htx[1]);
|
||||
if (htx[2] != NULL)
|
||||
allocsize += strlen(htx[2]);
|
||||
|
||||
/* Calculate the length of the shortcut help text. Each entry has
|
||||
* one or two keys, which fill 17 cells, plus translated text,
|
||||
* plus one or two \n's. */
|
||||
for (f = allfuncs; f != NULL; f = f->next)
|
||||
if (f->menus & currmenu)
|
||||
allocsize += strlen(_(f->help)) + 21;
|
||||
|
||||
#ifndef NANO_TINY
|
||||
/* If we're on the main list, we also count the toggle help text.
|
||||
* Each entry has "M-%c\t\t ", six chars which fill 17 cells, plus
|
||||
* two translated texts, plus a space, plus one or two '\n's. */
|
||||
if (currmenu == MMAIN) {
|
||||
size_t onoff_len = strlen(_("enable/disable"));
|
||||
|
||||
for (s = sclist; s != NULL; s = s->next)
|
||||
if (s->func == do_toggle_void)
|
||||
allocsize += strlen(_(flagtostr(s->toggle))) + onoff_len + 9;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Allocate memory for the help text. */
|
||||
help_text = charalloc(allocsize + 1);
|
||||
|
||||
/* Now add the text we want. */
|
||||
strcpy(help_text, htx[0]);
|
||||
if (htx[1] != NULL)
|
||||
strcat(help_text, htx[1]);
|
||||
if (htx[2] != NULL)
|
||||
strcat(help_text, htx[2]);
|
||||
|
||||
/* Remember this end-of-introduction, start-of-shortcuts. */
|
||||
end_of_intro = help_text + strlen(help_text);
|
||||
ptr = end_of_intro;
|
||||
|
||||
/* Now add the shortcuts and their descriptions. */
|
||||
for (f = allfuncs; f != NULL; f = f->next) {
|
||||
int tally = 0;
|
||||
|
||||
if ((f->menus & currmenu) == 0)
|
||||
continue;
|
||||
|
||||
/* Show the first two shortcuts (if any) for each function. */
|
||||
for (s = sclist; s != NULL; s = s->next) {
|
||||
if ((s->menus & currmenu) && s->func == f->func && s->keystr[0]) {
|
||||
/* Make the first column 7 cells wide and the second 10. */
|
||||
if (++tally == 1) {
|
||||
sprintf(ptr, "%s ", s->keystr);
|
||||
/* Unicode arrows take three bytes instead of one. */
|
||||
ptr += (strstr(s->keystr, "\xE2") != NULL ? 9 : 7);
|
||||
} else {
|
||||
sprintf(ptr, "(%s) ", s->keystr);
|
||||
ptr += (strstr(s->keystr, "\xE2") != NULL ? 12 : 10);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (tally == 0)
|
||||
ptr += sprintf(ptr, "\t\t ");
|
||||
else if (tally == 1)
|
||||
ptr += 10;
|
||||
|
||||
/* The shortcut's description. */
|
||||
ptr += sprintf(ptr, "%s\n", _(f->help));
|
||||
|
||||
if (f->blank_after)
|
||||
ptr += sprintf(ptr, "\n");
|
||||
}
|
||||
|
||||
#ifndef NANO_TINY
|
||||
/* And the toggles... */
|
||||
if (currmenu == MMAIN) {
|
||||
int maximum = 0, counter = 0;
|
||||
|
||||
/* First see how many toggles there are. */
|
||||
for (s = sclist; s != NULL; s = s->next)
|
||||
maximum = (s->toggle && s->ordinal > maximum) ? s->ordinal : maximum;
|
||||
|
||||
/* Now show them in the original order. */
|
||||
while (counter < maximum) {
|
||||
counter++;
|
||||
for (s = sclist; s != NULL; s = s->next)
|
||||
if (s->toggle && s->ordinal == counter) {
|
||||
ptr += sprintf(ptr, "%s\t\t %s %s\n", (s->menus == MMAIN ? s->keystr : ""),
|
||||
_(flagtostr(s->toggle)), _("enable/disable"));
|
||||
if (s->toggle == NO_SYNTAX || s->toggle == TABS_TO_SPACES)
|
||||
ptr += sprintf(ptr, "\n");
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif /* !NANO_TINY */
|
||||
}
|
||||
#endif /* ENABLE_HELP */
|
||||
|
||||
/* Start the help viewer, or indicate that there is no help. */
|
||||
|
|
|
|||
|
|
@ -331,10 +331,9 @@ int keycode_from_string(const char *keystring);
|
|||
void shortcut_init(void);
|
||||
const char *flagtostr(int flag);
|
||||
|
||||
/* Most functions in help.c. */
|
||||
/* Some functions in help.c. */
|
||||
#ifdef ENABLE_HELP
|
||||
void wrap_help_text_into_buffer(void);
|
||||
void help_init(void);
|
||||
#endif
|
||||
void do_help(void);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue