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| author | Behdad Esfahbod <behdad@behdad.org> | 2012-01-18 22:47:44 -0500 |
|---|---|---|
| committer | Behdad Esfahbod <behdad@behdad.org> | 2012-01-18 22:47:44 -0500 |
| commit | 8750abaf8410005facbea8c886c592bead7f959b (patch) | |
| tree | 2ad025a77ca2241805516c1c946ffbf2f38df27b /util | |
| parent | 889caa52fa1bef61013ec1d127f84d7d5907ef1e (diff) | |
[util] Add --help-features
Patch from Khaled Hosny.
Diffstat (limited to 'util')
| -rw-r--r-- | util/options.cc | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/util/options.cc b/util/options.cc index 2f201c5f..5ded644e 100644 --- a/util/options.cc +++ b/util/options.cc @@ -391,7 +391,6 @@ shape_options_t::add_options (option_parser_t *parser) {"direction", 0, 0, G_OPTION_ARG_STRING, &this->direction, "Set text direction (default: auto)", "ltr/rtl/ttb/btt"}, {"language", 0, 0, G_OPTION_ARG_STRING, &this->language, "Set text language (default: $LANG)", "langstr"}, {"script", 0, 0, G_OPTION_ARG_STRING, &this->script, "Set text script (default: auto)", "ISO-15924 tag"}, - {"features", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_features, "Font features to apply to text", "TODO"}, {NULL} }; parser->add_group (entries, @@ -399,6 +398,47 @@ shape_options_t::add_options (option_parser_t *parser) "Shape options:", "Options controlling the shaping process", this); + + const gchar *features_help = "\n" + "\n" + " Comma-separated list of font features to apply to text\n" + "\n" + " Features can be enabled or disabled, either globally or limited to\n" + " specific byte ranges. The format is Python-esque. Here is how it all\n" + " works:\n" + "\n" + " Syntax: Value: Start: End:\n" + "\n" + " Setting value:\n" + " \"kern\" 1 0 ∞ # Turn feature on\n" + " \"+kern\" 1 0 ∞ # Turn feature on\n" + " \"-kern\" 0 0 ∞ # Turn feature off\n" + " \"kern=0\" 0 0 ∞ # Turn feature off\n" + " \"kern=1\" 1 0 ∞ # Turn feature on\n" + " \"aalt=2\" 2 0 ∞ # Choose 2nd alternate\n" + "\n" + " Setting index:\n" + " \"kern[]\" 1 0 ∞ # Turn feature on\n" + " \"kern[:]\" 1 0 ∞ # Turn feature on\n" + " \"kern[5:]\" 1 5 ∞ # Turn feature on, partial\n" + " \"kern[:5]\" 1 0 5 # Turn feature on, partial\n" + " \"kern[3:5]\" 1 3 5 # Turn feature on, range\n" + " \"kern[3]\" 1 3 3+1 # Turn feature on, single char\n" + "\n" + " Mixing it all:\n" + "\n" + " \"kern[3:5]=0\" 1 3 5 # Turn feature off for range"; + + GOptionEntry entries2[] = + { + {"features", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_features, features_help, "list"}, + {NULL} + }; + parser->add_group (entries2, + "features", + "Features options:", + "Options controlling the OpenType font features applied", + this); } void |