summaryrefslogtreecommitdiff
path: root/git-gui/lib/encoding.tcl
diff options
context:
space:
mode:
Diffstat (limited to 'git-gui/lib/encoding.tcl')
-rw-r--r--git-gui/lib/encoding.tcl250
1 files changed, 220 insertions, 30 deletions
diff --git a/git-gui/lib/encoding.tcl b/git-gui/lib/encoding.tcl
index 7f06b0d..32668fc 100644
--- a/git-gui/lib/encoding.tcl
+++ b/git-gui/lib/encoding.tcl
@@ -206,7 +206,7 @@ set encoding_aliases {
{ ISO-8859-16 iso-ir-226 ISO_8859-16:2001 ISO_8859-16 latin10 l10 }
{ GBK CP936 MS936 windows-936 }
{ JIS_Encoding csJISEncoding }
- { Shift_JIS MS_Kanji csShiftJIS }
+ { Shift_JIS MS_Kanji csShiftJIS ShiftJIS Shift-JIS }
{ Extended_UNIX_Code_Packed_Format_for_Japanese csEUCPkdFmtJapanese
EUC-JP }
{ Extended_UNIX_Code_Fixed_Width_for_Japanese csEUCFixWidJapanese }
@@ -240,37 +240,227 @@ set encoding_aliases {
{ Big5 csBig5 }
}
+set encoding_groups {
+ {"" ""
+ {"Unicode" UTF-8}
+ {"Western" ISO-8859-1}}
+ {we "West European"
+ {"Western" ISO-8859-15 CP-437 CP-850 MacRoman CP-1252 Windows-1252}
+ {"Celtic" ISO-8859-14}
+ {"Greek" ISO-8859-14 ISO-8859-7 CP-737 CP-869 MacGreek CP-1253 Windows-1253}
+ {"Icelandic" MacIceland MacIcelandic CP-861}
+ {"Nordic" ISO-8859-10 CP-865}
+ {"Portuguese" CP-860}
+ {"South European" ISO-8859-3}}
+ {ee "East European"
+ {"Baltic" CP-775 ISO-8859-4 ISO-8859-13 CP-1257 Windows-1257}
+ {"Central European" CP-852 ISO-8859-2 MacCE CP-1250 Windows-1250}
+ {"Croatian" MacCroatian}
+ {"Cyrillic" CP-855 ISO-8859-5 ISO-IR-111 KOI8-R MacCyrillic CP-1251 Windows-1251}
+ {"Russian" CP-866}
+ {"Ukrainian" KOI8-U MacUkraine MacUkrainian}
+ {"Romanian" ISO-8859-16 MacRomania MacRomanian}}
+ {ea "East Asian"
+ {"Generic" ISO-2022}
+ {"Chinese Simplified" GB2312 GB1988 GB12345 GB2312-RAW GBK EUC-CN GB18030 HZ ISO-2022-CN}
+ {"Chinese Traditional" Big5 Big5-HKSCS EUC-TW CP-950}
+ {"Japanese" EUC-JP ISO-2022-JP Shift-JIS JIS-0212 JIS-0208 JIS-0201 CP-932 MacJapan}
+ {"Korean" EUC-KR UHC JOHAB ISO-2022-KR CP-949 KSC5601}}
+ {sa "SE & SW Asian"
+ {"Armenian" ARMSCII-8}
+ {"Georgian" GEOSTD8}
+ {"Thai" TIS-620 ISO-8859-11 CP-874 Windows-874 MacThai}
+ {"Turkish" CP-857 CP857 ISO-8859-9 MacTurkish CP-1254 Windows-1254}
+ {"Vietnamese" TCVN VISCII VPS CP-1258 Windows-1258}
+ {"Hindi" MacDevanagari}
+ {"Gujarati" MacGujarati}
+ {"Gurmukhi" MacGurmukhi}}
+ {me "Middle Eastern"
+ {"Arabic" ISO-8859-6 Windows-1256 CP-1256 CP-864 MacArabic}
+ {"Farsi" MacFarsi}
+ {"Hebrew" ISO-8859-8-I Windows-1255 CP-1255 ISO-8859-8 CP-862 MacHebrew}}
+ {mi "Misc"
+ {"7-bit" ASCII}
+ {"16-bit" Unicode}
+ {"Legacy" CP-863 EBCDIC}
+ {"Symbol" Symbol Dingbats MacDingbats MacCentEuro}}
+}
+
+proc build_encoding_table {} {
+ global encoding_aliases encoding_lookup_table
+
+ # Prepare the lookup list; cannot use lsort -nocase because
+ # of compatibility issues with older Tcl (e.g. in msysgit)
+ set names [list]
+ foreach item [encoding names] {
+ lappend names [list [string tolower $item] $item]
+ }
+ set names [lsort -ascii -index 0 $names]
+ # neither can we use lsearch -index
+ set lnames [list]
+ foreach item $names {
+ lappend lnames [lindex $item 0]
+ }
+
+ foreach grp $encoding_aliases {
+ set target {}
+ foreach item $grp {
+ set i [lsearch -sorted -ascii $lnames \
+ [string tolower $item]]
+ if {$i >= 0} {
+ set target [lindex $names $i 1]
+ break
+ }
+ }
+ if {$target eq {}} continue
+ foreach item $grp {
+ set encoding_lookup_table([string tolower $item]) $target
+ }
+ }
+
+ foreach item $names {
+ set encoding_lookup_table([lindex $item 0]) [lindex $item 1]
+ }
+}
+
proc tcl_encoding {enc} {
- global encoding_aliases
- set names [encoding names]
- set lcnames [string tolower $names]
- set enc [string tolower $enc]
- set i [lsearch -exact $lcnames $enc]
- if {$i < 0} {
- # look for "isonnn" instead of "iso-nnn" or "iso_nnn"
- if {[regsub {^iso[-_]} $enc iso encx]} {
- set i [lsearch -exact $lcnames $encx]
+ global encoding_lookup_table
+ if {$enc eq {}} {
+ return {}
+ }
+ if {![info exists encoding_lookup_table]} {
+ build_encoding_table
+ }
+ set enc [string tolower $enc]
+ if {![info exists encoding_lookup_table($enc)]} {
+ # look for "isonnn" instead of "iso-nnn" or "iso_nnn"
+ if {[regsub {^(iso|cp|ibm|jis)[-_]} $enc {\1} encx]} {
+ set enc $encx
+ }
+ }
+ if {[info exists encoding_lookup_table($enc)]} {
+ return $encoding_lookup_table($enc)
+ } else {
+ return {}
+ }
+}
+
+proc force_path_encoding {path enc} {
+ global path_encoding_overrides last_encoding_override
+
+ set enc [tcl_encoding $enc]
+ if {$enc eq {}} {
+ catch { unset last_encoding_override }
+ catch { unset path_encoding_overrides($path) }
+ } else {
+ set last_encoding_override $enc
+ if {$path ne {}} {
+ set path_encoding_overrides($path) $enc
+ }
+ }
+}
+
+proc get_path_encoding {path} {
+ global path_encoding_overrides last_encoding_override
+
+ if {[info exists last_encoding_override]} {
+ set tcl_enc $last_encoding_override
+ } else {
+ set tcl_enc [tcl_encoding [get_config gui.encoding]]
}
- }
- if {$i < 0} {
- foreach l $encoding_aliases {
- set ll [string tolower $l]
- if {[lsearch -exact $ll $enc] < 0} continue
- # look through the aliases for one that tcl knows about
- foreach e $ll {
- set i [lsearch -exact $lcnames $e]
- if {$i < 0} {
- if {[regsub {^iso[-_]} $e iso ex]} {
- set i [lsearch -exact $lcnames $ex]
- }
+ if {$tcl_enc eq {}} {
+ set tcl_enc [encoding system]
+ }
+ if {$path ne {}} {
+ if {[info exists path_encoding_overrides($path)]} {
+ set enc2 $path_encoding_overrides($path)
+ } else {
+ set enc2 [tcl_encoding [gitattr $path encoding $tcl_enc]]
+ }
+ if {$enc2 ne {}} {
+ set tcl_enc $enc2
+ }
+ }
+ return $tcl_enc
+}
+
+proc build_encoding_submenu {parent grp cmd} {
+ global used_encodings
+
+ set mid [lindex $grp 0]
+ set gname [mc [lindex $grp 1]]
+
+ set smenu {}
+ foreach subset [lrange $grp 2 end] {
+ set name [mc [lindex $subset 0]]
+
+ foreach enc [lrange $subset 1 end] {
+ set tcl_enc [tcl_encoding $enc]
+ if {$tcl_enc eq {}} continue
+
+ if {$smenu eq {}} {
+ if {$mid eq {}} {
+ set smenu $parent
+ } else {
+ set smenu "$parent.$mid"
+ menu $smenu
+ $parent add cascade \
+ -label $gname \
+ -menu $smenu
+ }
+ }
+
+ if {$name ne {}} {
+ set lbl "$name ($enc)"
+ } else {
+ set lbl $enc
+ }
+ $smenu add command \
+ -label $lbl \
+ -command [concat $cmd [list $tcl_enc]]
+
+ lappend used_encodings $tcl_enc
+ }
+ }
+}
+
+proc popup_btn_menu {m b} {
+ tk_popup $m [winfo pointerx $b] [winfo pointery $b]
+}
+
+proc build_encoding_menu {emenu cmd {nodef 0}} {
+ $emenu configure -postcommand \
+ [list do_build_encoding_menu $emenu $cmd $nodef]
+}
+
+proc do_build_encoding_menu {emenu cmd {nodef 0}} {
+ global used_encodings encoding_groups
+
+ $emenu configure -postcommand {}
+
+ if {!$nodef} {
+ $emenu add command \
+ -label [mc "Default"] \
+ -command [concat $cmd [list {}]]
+ }
+ set sysenc [encoding system]
+ $emenu add command \
+ -label [mc "System (%s)" $sysenc] \
+ -command [concat $cmd [list $sysenc]]
+
+ # Main encoding tree
+ set used_encodings [list identity]
+ $emenu add separator
+ foreach grp $encoding_groups {
+ build_encoding_submenu $emenu $grp $cmd
+ }
+
+ # Add unclassified encodings
+ set unused_grp [list [mc Other]]
+ foreach enc [encoding names] {
+ if {[lsearch -exact $used_encodings $enc] < 0} {
+ lappend unused_grp $enc
}
- if {$i >= 0} break
- }
- break
}
- }
- if {$i >= 0} {
- return [lindex $names $i]
- }
- return {}
+ build_encoding_submenu $emenu [list other [mc Other] $unused_grp] $cmd
}