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syntaxes: colorize hex more strictly by using character class [:xdigit:]
In UTF-8 locales, the ranges A-F and a-f include several accented
characters beyond "ABCDEF" and "abcdef", such as the Croat č and ć.
This fixes https://savannah.gnu.org/bugs/?61487.
Bug existed since the beginning of each of the syntaxes,
for the C syntax since version 1.3.6, commit 159bdfdc
.
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@ -23,7 +23,7 @@ color brightyellow "\<(try|throw|catch|operator|new|delete)\>"
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color magenta "\<(break|continue|goto|return)\>"
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# Single-quoted stuff (characters, backslash escapes, hex and octal byte codes).
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color brightmagenta "'([^'\]|\\(["'\abfnrtv]|x[0-9A-Fa-f]{1,2}|[0-3]?[0-7]{1,2}))'"
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color brightmagenta "'([^'\]|\\(["'\abfnrtv]|x[[:xdigit:]]{1,2}|[0-3]?[0-7]{1,2}))'"
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# GCC builtins.
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color cyan "__attribute__[[:blank:]]*\(\([^)]*\)\)" "__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__"
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@ -27,7 +27,7 @@ color brightcyan "\<(package|import)\>"
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# Literals.
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color red "\<(true|false|nil|iota|_)\>"
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color red "\<([1-9][0-9]*|0[0-7]*|0[xX][0-9A-Fa-f]+)\>"
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color red "\<([1-9][0-9]*|0[0-7]*|0[xX][[:xdigit:]]+)\>"
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color red "\<[0-9]+\.[0-9]*([eE][+-]?[0-9]+)?i?\>"
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color red "\<[0-9]+[eE][+-]?[0-9]+i?\>"
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color red "\B\.[0-9]+([eE][+-]?[0-9]+)?i?\>"
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@ -12,7 +12,7 @@ color brightyellow "\<(await|export|import|throw|try|catch|finally|new|delete)\>
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color magenta "\<(break|continue|return|yield)\>"
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# Octal/decimal and hexadecimal numbers.
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color cyan "\<([0-9]+|0x[0-9A-Fa-f]+)\>"
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color cyan "\<([0-9]+|0x[[:xdigit:]]+)\>"
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# Special values.
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color cyan "\<(true|false|null|undefined)\>"
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@ -12,9 +12,9 @@ color green ":[[:blank:]]*\-?(0|[1-9][0-9]*)(\.[0-9]+)?([Ee]?[-+]?[0-9]+)?"
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# Values (well, any string).
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color brightmagenta "".+""
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# Hex numbers (used as value).
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color green ":[[:blank:]]*"#[0-9abcdefABCDEF]+""
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color green ":[[:blank:]]*"#[[:xdigit:]]+""
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# Escapes.
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color green "\\["\/bfnrt]" "\\u[0-9abcdefABCDEF]{4}"
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color green "\\(["\/bfnrt]|u[[:xdigit:]]{4})"
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# Special words.
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color green "\<(true|false|null)\>"
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@ -45,7 +45,7 @@ color brightmagenta "\<(false|nil|true)\>"
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# Decimal and hexadecimal numbers
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color red "\<[0-9]+(\.[0-9]*)?([Ee][+-]?[0-9]+)?\>"
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color red "\<0x[0-9A-Fa-f]+(\.[0-9A-Fa-f]*)?([Pp][+-]?[0-9]+)?\>"
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color red "\<0x[[:xdigit:]]+(\.[[:xdigit:]]*)?([Pp][+-]?[0-9]+)?\>"
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# Brackets
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color brightmagenta "\(|\)|\[|\]|\{|\}"
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@ -24,7 +24,7 @@ color magenta "[[:alnum:]]*:"
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color white "\[[^][:blank:]]*\]"
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# Strings.
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color brightblack "'([^'\]|\\(["'\abfnrtv]|x[0-9A-Fa-f]{1,2}|[0-3]?[0-7]{1,2}))'"
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color brightblack "'([^'\]|\\(["'\abfnrtv]|x[[:xdigit:]]{1,2}|[0-3]?[0-7]{1,2}))'"
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color brightblack "<[^= ]*>|"([^"\]|\\.)*""
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color brightblue "@"([^"\]|\\.)*""
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@ -25,7 +25,7 @@ color yellow " (no-)?[-[:alpha:]]+-format(,|$)"
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color brightmagenta "%([1-9]\$)?[#0 +'I-]?(\*([1-9]\$)?|[1-9](\.[0-9]?)?)?[hlLjzt]?[diouxXeEfFgGaAcspnm%]"
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# Quotes and escaped characters.
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color yellow """
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color cyan "\\([abcefnrtv"\]|x[0-9abcdefABCDEF]{2}|[0-7]{3})"
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color cyan "\\([abcefnrtv"\]|x[[:xdigit:]]{2}|[0-7]{3})"
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# Reminders.
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color brightwhite,yellow "\<(FIXME|TODO|XXX)\>"
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# Obsolete strings.
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