nano/syntax/json.nanorc
Benno Schulenberg 544351f3be syntaxes: replace [[:space:]] with [[:blank:]] to exclude carriage return
In many places a carriage return is not valid whitespace and should
thus not be colored as such.  In some of these places a vertical tab
or form feed is maybe valid whitespace, but it would be ugly or even
wrong to color them because they are not part of the subsequent
comment or keyword.

This fixes https://savannah.gnu.org/bugs/?60456.
2021-04-27 11:18:41 +02:00

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## Syntax highlighting for JSON files.
## Original author: Aapo Rantalainen
## License: GPL version 3 or newer
syntax json "\.json$"
# No comments are permitted in JSON.
comment ""
# Numbers (used as value).
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]+""
# Escapes.
color green "\\\\" "\\"" "\\[bfnrt]" "\\u[0-9abcdefABCDEF]{4})"
# Special words.
color green "\<(true|false|null)\>"
# Names (very unlikely to contain a quote).
color brightblue ""[^"]+"[[:blank:]]*:"
# Brackets, braces, and separators.
color brightblue "\[" "\]"
color brightred "\{" "\}"
color brightred "," ":"
# Comments.
color cyan "(^|[[:blank:]]+)(//|#).*"
# Trailing whitespace.
color ,green "[[:space:]]+$"