I made this as a learning exercise as I read through the HAL man pages. I figured someone here might make use of it - perhaps even help me improve it.
Of course, it'll look different depending on how you have your terminal set up, but on mine it looks like this:
Attachment not found
If you haven't already, you'll need to enable syntax highlighting for Nano. One way to do this is by opening
/etc/nanorc and finding and un-commenting the second line below:
Code:
## To include most of the existing syntax definitions, you can do:
# include "/usr/share/nano/*.nanorc"
Then save the following to
/usr/share/nano/hal.nanorc :
Code:
## Syntax highlighting for HAL files.
# Note if editing: Precedence of regex impacts how highlighting is displayed.
syntax hal "\.[hH]{1}[aA]{1}[lL]{1}$"
comment "#"
# Formatting for precedence.
color italic,normal "^loadrt.*"
# Read/write names.
color lightmagenta "(read|write)"
# Thread names.
color blue "(servo|base)\-thread"
# Commands.
color italic,blue "^(addf|alias|delf|delsig|getp|gets|ptype|stype|help|linkpp|linkps|inksp|list|loadrt|loadusr|lock|net|newsig|save|setp|ets|show|source|start|status|stop|unalias|unlinkp|unload|nloadrt|unloadusr|unlock|waitusr)"
# Components.
color lightred "([[:space:]]|\,|=)(motion|iocontrol|classicladder|halui|stepgen|encoder|pid|siggen|supply)"
# Axis labels and numaric IDs.
color lightblue "(\.|-|[[:space:]])(x|y|z|a|b|c|u|v|w|[[:digit:]]{1,2})(\.|\,|-|[[:space:]]|$)"
# Formatting for precedence/correction.
color normal "(\.|-|_|,|=)"
# INI references.
color italic,lightyellow "\[\S+]\(\S+\)"
color italic,lightgreen "\[\S+\]"
color lightyellow "\][A-Z0-9\_]+"
color cyan "(\[|\]|\(|\))"
# Thread names.
color blue "(servo|base)\-thread"
# Strings.
color lightcyan start="\"" end="\""
# Numbers and booleans.
color lightmagenta "\s\-?[[:digit:]]+(\.[[:digit:]]+)?"
color lightmagenta "(true|false)"
# Comments.
color lightblack "\#.*"
# Reminders.
color bold,brightblack,yellow "\<FIXME|TODO|XXX)\>"
As you can see, Nano's highlighting rules are limited to regex, but this should be fine for the purposes of a declarative language.
All feedback is welcome - even if it's telling me I'm barking up the wrong tree.
