Benno Schulenberg 485eb18d83 syntaxes: use one regex for coloring quoted strings, to avoid overlap
Quoted strings cannot start within another quoted string and end after
that other string has ended.  Therefore single-quoted and double-quoted
strings should (as much as possible) be colorized by a single rule, so
that overlapping colorations are avoided.

(This also fixes a double typo in the PHP syntax (\. --> \\.) that has
been there since the PHP syntax was added in 2008, commit 90ee8ee4.)

This fixes https://savannah.gnu.org/bugs/?61387.

Bug existed since each of these syntaxes was introduced,
the oldest ones around 2006, a few others around 2015.

The one that got it right was the Lua syntax from 2011.
2021-10-26 13:28:33 +02:00

36 lines
1.1 KiB
Plaintext

## Syntax highlighting for PHP.
syntax php "\.(php[23457s~]?|phtml|ctp)$"
magic "PHP script"
comment "//"
# PHP markings.
color brightgreen "(<\?(php|=)?|\?>)"
# Function names.
color white "\<[A-Za-z_][A-Za-z_0-9]*\("
# Variable names.
color cyan "\$[A-Za-z_][A-Za-z_0-9]*"
# Types.
color green "\<(array|bool|callable|const|float|global|int|object|string|var)\>"
# Directives and structure.
color brightcyan "\<(abstract|as|class|clone|(end)?declare|extends|function|implements|include(_once)?|inst(ance|ead)of|interface|namespace|new|private|protected|public|require(_once)?|static|trait|use|yield)\>"
color brightcyan "\<(case|catch|default|do|echo|else(if)?|end(for(each)?|if|switch|while)|final(ly)?|for(each)?|if|print|switch|throw|try|while)\>"
# Operators.
color brightcyan "\<(and|or|xor)\>"
# Control flow.
color magenta "\<(break|continue|goto|return)\>"
# Strings.
color brightyellow ""(\\.|[^"])*"|'(\\.|[^'])*'"
# Comments.
color brightblue "(^|[[:blank:]]+)//.*"
color brightblue start="/\*" end="\*/"
# Trailing whitespace.
color ,green "[[:space:]]+$"