diff options
Diffstat (limited to 'src/optionstr.c')
| -rw-r--r-- | src/optionstr.c | 123 |
1 files changed, 118 insertions, 5 deletions
diff --git a/src/optionstr.c b/src/optionstr.c index 135cb9af68..6b40dcd706 100644 --- a/src/optionstr.c +++ b/src/optionstr.c @@ -731,7 +731,8 @@ did_set_option_listflag(char_u *val, char_u *flags, char *errbuf) } /* - * Expand an option that accepts a list of string values. + * Expand an option that accepts a list of fixed string values with known + * number of items. */ static int expand_set_opt_string( @@ -801,10 +802,11 @@ static char_u *set_opt_callback_orig_option = NULL; static char_u *((*set_opt_callback_func)(expand_T *, int)); /* - * Callback used by expand_set_opt_generic to also include the original value. + * Callback used by expand_set_opt_generic to also include the original value + * as the first item. */ static char_u * -expand_set_opt_callback(expand_T *xp, int idx) +expand_set_opt_generic_cb(expand_T *xp, int idx) { if (idx == 0) { @@ -817,7 +819,8 @@ expand_set_opt_callback(expand_T *xp, int idx) } /* - * Expand an option with a callback that iterates through a list of possible names. + * Expand an option with a callback that iterates through a list of possible + * names using an index. */ static int expand_set_opt_generic( @@ -838,7 +841,7 @@ expand_set_opt_generic( args->oe_regmatch, matches, numMatches, - expand_set_opt_callback, + expand_set_opt_generic_cb, FALSE); set_opt_callback_orig_option = NULL; @@ -846,6 +849,95 @@ expand_set_opt_generic( return ret; } +static garray_T *expand_cb_ga; +static optexpand_T *expand_cb_args; + +/* + * Callback provided to a function in expand_set_opt_callback. Will perform + * regex matching against the value and add to the list. + * + * Returns OK usually. Returns FAIL if it failed to allocate memory, and the + * caller should terminate the enumeration. + */ + static int +expand_set_opt_callback_cb(char_u *val) +{ + regmatch_T *regmatch = expand_cb_args->oe_regmatch; + expand_T *xp = expand_cb_args->oe_xp; + garray_T *ga = expand_cb_ga; + char_u *str; + + if (val == NULL || *val == NUL) + return OK; + + if (xp->xp_pattern[0] != NUL && + !vim_regexec(regmatch, val, (colnr_T)0)) + return OK; + + str = vim_strsave_escaped(val, (char_u *)" \t\\"); + + if (str == NULL) + return FAIL; + + if (ga_grow(ga, 1) == FAIL) + { + vim_free(str); + return FAIL; + } + + ((char_u **)ga->ga_data)[ga->ga_len] = str; + ++ga->ga_len; + return OK; +} + +/* + * Expand an option with a provided function that takes a callback. The + * function will enumerate through all options and call the callback to add it + * to the list. + * + * "func" is the enumerator function that will generate the list of options. + * "func_params" is a single parameter that will be passed to func. + */ + static int +expand_set_opt_callback( + optexpand_T *args, + void (*func)(optexpand_T *, void* params, int (*cb)(char_u *val)), + void *func_params, + int *numMatches, + char_u ***matches) +{ + garray_T ga; + int include_orig_val = args->oe_include_orig_val; + char_u *option_val = args->oe_opt_value; + + ga_init2(&ga, sizeof(char *), 30); + + if (include_orig_val && *option_val != NUL) + { + char_u *p = vim_strsave(option_val); + if (p == NULL) + return FAIL; + if (ga_grow(&ga, 1) == FAIL) + { + vim_free(p); + return FAIL; + } + ((char_u **)ga.ga_data)[ga.ga_len] = p; + ++ga.ga_len; + } + + expand_cb_ga = &ga; + expand_cb_args = args; + + func(args, func_params, expand_set_opt_callback_cb); + + expand_cb_ga = NULL; + expand_cb_args = NULL; + + *matches = ga.ga_data; + *numMatches = ga.ga_len; + return OK; +} /* * Expand an option which is a list of flags. @@ -2237,6 +2329,27 @@ did_set_guifont(optset_T *args UNUSED) return errmsg; } +/* + * Expand the 'guifont' option. Only when GUI is being used. Each platform has + * specific behaviors. + */ + int +expand_set_guifont(optexpand_T *args, int *numMatches, char_u ***matches) +{ + if (!gui.in_use) + return FAIL; + +# if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_GTK) + char_u **varp = (char_u **)args->oe_varp; + int wide = (varp == &p_guifontwide); + + return expand_set_opt_callback( + args, gui_mch_expand_font, &wide, numMatches, matches); +# else + return FAIL; +# endif +} + # if defined(FEAT_XFONTSET) || defined(PROTO) /* * The 'guifontset' option is changed. |