nano: add syntax highlighting for ucode scripts

Introduce local syntax highlighting support for ucode scripts, like
it is done already for uci configuration files.

Ref: https://github.com/jow-/ucode/issues/178
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit d8a574f7f0eb2f5970119a2b0527048583054180)

diff --git a/utils/nano/Makefile b/utils/nano/Makefile
index e68b289501af04534dfbc5e4d3fdb74d4df9c2b4..4400b780f2d66434cb008f38a6178128f7f0c6e4 100644 (file)
--- a/utils/nano/Makefile
+++ b/utils/nano/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nano
 PKG_VERSION:=7.2
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNU/nano
@@ -140,6 +140,7 @@ define Package/nano-full/install
        $(INSTALL_DIR) $(1)/etc $(1)/usr/share/nano
        $(INSTALL_DATA) ./files/nanorc $(1)/etc/nanorc
        $(INSTALL_DATA) ./files/uci.nanorc $(1)/usr/share/nano
+       $(INSTALL_DATA) ./files/ucode.nanorc $(1)/usr/share/nano
        $(CP) $(PKG_INSTALL_DIR)/usr/share/nano/* $(1)/usr/share/nano
 endef
 

diff --git a/utils/nano/files/ucode.nanorc b/utils/nano/files/ucode.nanorc
new file mode 100644 (file)
index 0000000..96c7848
--- /dev/null
+++ b/utils/nano/files/ucode.nanorc
@@ -0,0 +1,51 @@
+## Syntax highlighting for OpenWrt ucode scripts.
+
+syntax ucode "/ucode/|\.u[ct]$"
+header "^#!.*\<ucode\>"
+comment "//"
+
+# Declarations
+color green "\<(let|const|function|this)\>"
+
+# Arrow functions
+color green "(\<\w+\>|\([[:alnum:][:space:]_,.]*\))[[:space:]]*=>"
+
+# Flow control and keywords
+color brightyellow "\<(while|if|else|elif|switch|case|default|for|in|endif|endfor|endwhile|endfunction)\>"
+color brightyellow "\<(export|import|try|catch|delete)\>"
+
+# Exit points
+color magenta "\<(break|continue|return)\>"
+
+# Numeric literals
+color cyan "\<([0-9]+\.[0-9]+([eE][+-]?[0-9]+)?|[0-9]+[eE][+-]?[0-9]+)\>"
+color cyan "\<0[xX][[:xdigit:]]+(\.[[:xdigit:]]+)?\>"
+color cyan "\<(0[oO][0-7]+|0[bB][01]+|[0-9]+)\>"
+
+# Special values
+color cyan "\<(true|false|null|NaN|Infinity)\>"
+
+# Strings
+color brightmagenta ""([^"\{%#}]|\\.|\{[^"\{%#]|[%#}][^"\}]|[{%#}]\\.)*[{%#}]?""
+color brightmagenta "'([^'\{%#}]|\\.|\{[^'\{%#]|[%#}][^'\}]|[{%#}]\\.)*[{%#}]?'"
+color brightmagenta "`([^`\{%#}]|\\.|\{[^`\{%#]|[%#}][^`\}]|[{%#}]\\.)*[{%#}]?`"
+
+# Template string expressions
+color normal start="\$\{" end="}"
+
+# Comments
+color brightblue "(^|[[:blank:]])//.*"
+color brightblue start="(^|[[:space:]])/\*" end="\*/"
+color brightblue start="\{#" end="#\}"
+
+# Trailing whitespace.
+color ,green "[[:space:]]+$"
+
+# Text outside template directives
+color slate start="[}%#]\}" end="\{[{%#]"
+color slate start="^#!" end="\{[{%#]"
+color slate "^([^{%#}]|\{[^{%#]|[%#}][^}])+\{[{%#]"
+
+# Template tags
+color white "\{[{%][+-]?|-?[%}]\}"
+color brightblue "\{#[+-]?|-?#\}"