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.
This commit is contained in:
Benno Schulenberg 2021-11-15 15:56:11 +01:00
parent 06ad77895f
commit f757c4a512
7 changed files with 8 additions and 8 deletions

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@ -23,7 +23,7 @@ color brightyellow "\<(try|throw|catch|operator|new|delete)\>"
color magenta "\<(break|continue|goto|return)\>"
# Single-quoted stuff (characters, backslash escapes, hex and octal byte codes).
color brightmagenta "'([^'\]|\\(["'\abfnrtv]|x[0-9A-Fa-f]{1,2}|[0-3]?[0-7]{1,2}))'"
color brightmagenta "'([^'\]|\\(["'\abfnrtv]|x[[:xdigit:]]{1,2}|[0-3]?[0-7]{1,2}))'"
# GCC builtins.
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)\>"
# Literals.
color red "\<(true|false|nil|iota|_)\>"
color red "\<([1-9][0-9]*|0[0-7]*|0[xX][0-9A-Fa-f]+)\>"
color red "\<([1-9][0-9]*|0[0-7]*|0[xX][[:xdigit:]]+)\>"
color red "\<[0-9]+\.[0-9]*([eE][+-]?[0-9]+)?i?\>"
color red "\<[0-9]+[eE][+-]?[0-9]+i?\>"
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)\>
color magenta "\<(break|continue|return|yield)\>"
# Octal/decimal and hexadecimal numbers.
color cyan "\<([0-9]+|0x[0-9A-Fa-f]+)\>"
color cyan "\<([0-9]+|0x[[:xdigit:]]+)\>"
# Special values.
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]+)?"
# Values (well, any string).
color brightmagenta "".+""
# Hex numbers (used as value).
color green ":[[:blank:]]*"#[0-9abcdefABCDEF]+""
color green ":[[:blank:]]*"#[[:xdigit:]]+""
# Escapes.
color green "\\["\/bfnrt]" "\\u[0-9abcdefABCDEF]{4}"
color green "\\(["\/bfnrt]|u[[:xdigit:]]{4})"
# Special words.
color green "\<(true|false|null)\>"

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@ -45,7 +45,7 @@ color brightmagenta "\<(false|nil|true)\>"
# Decimal and hexadecimal numbers
color red "\<[0-9]+(\.[0-9]*)?([Ee][+-]?[0-9]+)?\>"
color red "\<0x[0-9A-Fa-f]+(\.[0-9A-Fa-f]*)?([Pp][+-]?[0-9]+)?\>"
color red "\<0x[[:xdigit:]]+(\.[[:xdigit:]]*)?([Pp][+-]?[0-9]+)?\>"
# Brackets
color brightmagenta "\(|\)|\[|\]|\{|\}"

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@ -24,7 +24,7 @@ color magenta "[[:alnum:]]*:"
color white "\[[^][:blank:]]*\]"
# Strings.
color brightblack "'([^'\]|\\(["'\abfnrtv]|x[0-9A-Fa-f]{1,2}|[0-3]?[0-7]{1,2}))'"
color brightblack "'([^'\]|\\(["'\abfnrtv]|x[[:xdigit:]]{1,2}|[0-3]?[0-7]{1,2}))'"
color brightblack "<[^= ]*>|"([^"\]|\\.)*""
color brightblue "@"([^"\]|\\.)*""

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@ -25,7 +25,7 @@ color yellow " (no-)?[-[:alpha:]]+-format(,|$)"
color brightmagenta "%([1-9]\$)?[#0 +'I-]?(\*([1-9]\$)?|[1-9](\.[0-9]?)?)?[hlLjzt]?[diouxXeEfFgGaAcspnm%]"
# Quotes and escaped characters.
color yellow """
color cyan "\\([abcefnrtv"\]|x[0-9abcdefABCDEF]{2}|[0-7]{3})"
color cyan "\\([abcefnrtv"\]|x[[:xdigit:]]{2}|[0-7]{3})"
# Reminders.
color brightwhite,yellow "\<(FIXME|TODO|XXX)\>"
# Obsolete strings.