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Add g_unichar_iszerowidth(). (#347645)

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2007-01-03  Behdad Esfahbod  <behdad@gnome.org>

        * glib/glib.symbols:
        * glib/gunicode.h:
        * glib/guniprop.c: Add g_unichar_iszerowidth(). (#347645)


svn path=/trunk/; revision=5202
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Behdad Esfahbod 2007-01-03 20:48:24 +00:00 committed by Behdad Esfahbod
parent 048efdfbd5
commit a0c60a62d6
13 changed files with 98 additions and 30 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2007-01-03 Behdad Esfahbod <behdad@gnome.org>
* glib/glib.symbols:
* glib/gunicode.h:
* glib/guniprop.c: Add g_unichar_iszerowidth(). (#347645)
2007-01-03 Behdad Esfahbod <behdad@gnome.org>
* glib/gutils.h: Fix bug in g_bit_nth_lsf (#371631) and use

11
docs/reference/ChangeLog
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@ -1,3 +1,14 @@
2007-01-03 Behdad Esfahbod <behdad@gnome.org>
* glib/glib-sections.txt: Add g_unichar_iszerowidth.
* glib/tmpl/glib-unused.sgml:
* glib/tmpl/keyfile.sgml:
* glib/tmpl/macros_misc.sgml:
* glib/tmpl/messages.sgml:
* glib/tmpl/unicode.sgml:
Template changes.
2007-01-02 Matthias Clasen <mclasen@redhat.com>
* glib/running.sgml: Remove C99ism from example.

1
docs/reference/glib/glib-sections.txt
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@ -2264,6 +2264,7 @@ g_unichar_istitle
g_unichar_isdefined
g_unichar_iswide
g_unichar_iswide_cjk
g_unichar_iszerowidth
g_unichar_toupper
g_unichar_tolower
g_unichar_totitle

9
docs/reference/glib/tmpl/glib-unused.sgml
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@ -203,6 +203,15 @@ error domains.
</para>
<!-- ##### MACRO G_HAVE_GNUC_VISIBILITY ##### -->
<para>
This macro is defined as 1 if the the compiler supports ELF visibility
attributes (currently only <command>gcc</command>).
</para>
Since: 2.6
<!-- ##### MACRO G_HOOK_DEFERRED_DESTROY ##### -->
<para>

4
docs/reference/glib/tmpl/keyfile.sgml
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@ -504,6 +504,8 @@ Flags which influence the parsing.
@key_file:
@group_name:
@key:
@list:
@length:
<!-- ##### FUNCTION g_key_file_set_locale_string_list ##### -->
@ -515,6 +517,8 @@ Flags which influence the parsing.
@group_name:
@key:
@locale:
@list:
@length:
<!-- ##### FUNCTION g_key_file_set_boolean_list ##### -->

10
docs/reference/glib/tmpl/macros_misc.sgml
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@ -297,16 +297,6 @@ See the GNU C documentation for details.
<!-- ##### MACRO G_HAVE_GNUC_VISIBILITY ##### -->
<para>
This macro is defined as 1 if the the compiler supports ELF visibility
attributes (currently only <command>gcc</command>).
</para>
Since: 2.6
<!-- ##### MACRO G_GNUC_INTERNAL ##### -->
<para>
Expands to the GNU C <literal>visibility(hidden)</literal> attribute if the

10
docs/reference/glib/tmpl/messages.sgml
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@ -144,6 +144,8 @@ A convenience function/macro to log a normal message.
@...:
@...:
@...:
@ -187,6 +189,8 @@ variable (see <ulink url="glib-running.html">Running GLib Applications</ulink>).
@...:
@...:
@...:
@ -235,6 +239,8 @@ the %G_DEBUG environment variable (see
@...:
@...:
@...:
@ -278,6 +284,8 @@ assertion failure.
@...:
@...:
@...:
@ -316,6 +324,8 @@ A convenience function/macro to log a debug message.
@...:
@...:
@...:
@Since: 2.6

9
docs/reference/glib/tmpl/unicode.sgml
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@ -201,6 +201,15 @@ will correctly interpret surrogate pairs.</footnote>.
@Returns:
<!-- ##### FUNCTION g_unichar_iszerowidth ##### -->
<para>
</para>
@c:
@Returns:
<!-- ##### FUNCTION g_unichar_toupper ##### -->
<para>

12
docs/reference/gobject/tmpl/enumerations_flags.sgml
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@ -232,13 +232,11 @@ than to write one yourself using g_enum_register_static().
</para>
@name: A nul-terminated string used as the name of the new type.
@_static_values:
@Returns: The new type identifier.
<!-- # Unused Parameters # -->
@const_static_values: An array of #GEnumValue structs for the possible
enumeration values. The array is terminated by a struct with all
members being 0. GObject keeps a reference to the data, so it cannot
be stack-allocated.
@Returns: The new type identifier.
<!-- ##### FUNCTION g_flags_register_static ##### -->
@ -252,12 +250,10 @@ than to write one yourself using g_flags_register_static().
</para>
@name: A nul-terminated string used as the name of the new type.
@_static_values:
@Returns: The new type identifier.
<!-- # Unused Parameters # -->
@const_static_values: An array of #GFlagsValue structs for the possible
flags values. The array is terminated by a struct with all members being 0.
GObject keeps a reference to the data, so it cannot be stack-allocated.
@Returns: The new type identifier.
<!-- ##### FUNCTION g_enum_complete_type_info ##### -->
@ -286,8 +282,6 @@ my_enum_complete_type_info (GTypePlugin *plugin,
@g_enum_type: the type identifier of the type being completed
@info: the #GTypeInfo struct to be filled in
@_values:
<!-- # Unused Parameters # -->
@const_values: An array of #GEnumValue structs for the possible
enumeration values. The array is terminated by a struct with all
members being 0.
@ -302,8 +296,6 @@ g_enumeration_complete_type_info() above.
@g_flags_type: the type identifier of the type being completed
@info: the #GTypeInfo struct to be filled in
@_values:
<!-- # Unused Parameters # -->
@const_values: An array of #GFlagsValue structs for the possible
enumeration values. The array is terminated by a struct with all
members being 0.

15
docs/reference/gobject/tmpl/gtypemodule.sgml
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@ -164,13 +164,11 @@ not be unloaded.
@module: a #GTypeModule
@name: name for the type
@_static_values:
@Returns: the new or existing type ID
@Since: 2.6
<!-- # Unused Parameters # -->
@const_static_values: an array of #GEnumValue structs for the possible
enumeration values. The array is terminated by a struct with all
members being 0.
@Returns: the new or existing type ID
@Since: 2.6
<!-- ##### FUNCTION g_type_module_register_flags ##### -->
@ -187,13 +185,11 @@ not be unloaded.
@module: a #GTypeModule
@name: name for the type
@_static_values:
@Returns: the new or existing type ID
@Since: 2.6
<!-- # Unused Parameters # -->
@const_static_values: an array of #GFlagsValue structs for the possible
flags values. The array is terminated by a struct with all
members being 0.
@Returns: the new or existing type ID
@Since: 2.6
<!-- ##### MACRO G_DEFINE_DYNAMIC_TYPE ##### -->
@ -212,7 +208,6 @@ See G_DEFINE_DYNAMIC_TYPE_EXTENDED() for an example.
@t_n: The name of the new type, in lowercase, with words
separated by '_'.
@T_P: The #GType of the parent type.
@Since: 2.14
@ -286,6 +281,6 @@ gtk_gadget_register_type (GTypeModule *type_module)
@TYPE_PARENT: The #GType of the parent type.
@flags: #GTypeFlags to pass to g_type_register_static()
@CODE: Custom code that gets inserted in the *_get_type() function.
@Since: 2.14

1
glib/glib.symbols
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@ -1256,6 +1256,7 @@ g_unichar_isupper G_GNUC_CONST
g_unichar_iswide G_GNUC_CONST
g_unichar_iswide_cjk G_GNUC_CONST
g_unichar_isxdigit G_GNUC_CONST
g_unichar_iszerowidth G_GNUC_CONST
g_unichar_tolower G_GNUC_CONST
g_unichar_totitle G_GNUC_CONST
g_unichar_toupper G_GNUC_CONST

1
glib/gunicode.h
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@ -215,6 +215,7 @@ gboolean g_unichar_istitle (gunichar c) G_GNUC_CONST;
gboolean g_unichar_isdefined (gunichar c) G_GNUC_CONST;
gboolean g_unichar_iswide (gunichar c) G_GNUC_CONST;
gboolean g_unichar_iswide_cjk(gunichar c) G_GNUC_CONST;
gboolean g_unichar_iszerowidth(gunichar c) G_GNUC_CONST;
/* More <ctype.h> functions. These convert between the three cases.
* See the Unicode book to understand title case. */

39
glib/guniprop.c
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@ -85,6 +85,11 @@
OR (G_UNICODE_COMBINING_MARK, \
OR (G_UNICODE_ENCLOSING_MARK, 0))))
#define ISZEROWIDTHTYPE(Type) IS ((Type), \
OR (G_UNICODE_NON_SPACING_MARK, \
OR (G_UNICODE_ENCLOSING_MARK, \
OR (G_UNICODE_FORMAT, 0))))
/**
* g_unichar_isalnum:
* @c: a Unicode character
@ -351,6 +356,40 @@ g_unichar_isdefined (gunichar c)
return TYPE (c) != G_UNICODE_UNASSIGNED;
}
/**
* g_unichar_iszerowidth:
* @c: a Unicode character
*
* Determines if a given character typically takes zero width when rendered.
* The return value is %TRUE for all non-spacing and enclosing marks
* (e.g., combining accents), format characters, zero-width
* space, but not U+00AD SOFT HYPHEN.
*
* A typical use of this function is with one of g_unichar_iswide() or
* g_unichar_iswide_cjk() to determine the number of cells a string occupies
* when displayed on a grid display (terminals). However, note that not all
* terminals support zero-width rendering of zero-width marks.
*
* Return value: %TRUE if the character has zero width
*
* Since: 2.14
**/
gboolean
g_unichar_iszerowidth (gunichar c)
{
if (G_UNLIKELY (c == 0x00AD))
return FALSE;
if (G_UNLIKELY (ISZEROWIDTHTYPE (c)))
return TRUE;
if (G_UNLIKELY ((c >= 0x1160 && c < 0x1200) ||
c == 0x200B))
return TRUE;
return FALSE;
}
/**
* g_unichar_iswide:
* @c: a Unicode character