" For version 6.x: Quit when a syntax file was already loaded
if version < 600
syn clear
elseif exists("b:current_syntax")
finish
endif
" Since I only highlight based on the structure of the databases, not
" specific keywords, case sensitivity isn't required
syn case ignore
" Since everything that is not caught by the syntax patterns is assumed
" to be an error, we start parsing 20 lines up, unless something else
" is specified
if exists("ptcap_minlines")
exe "syn sync lines=".ptcap_minlines
else
syn sync lines=20
endif
" Highlight everything that isn't caught by the rules as errors,
" except blank lines
syn match ptcapError "^.*\S.*$"
syn match ptcapLeadBlank "^\s\+" contained
" `:' and `|' are delimiters for fields and names, and should not be
" highlighted. Hence, they are linked to `NONE'
syn match ptcapDelimiter "[:|]" contained
" Escaped characters receive special highlighting
syn match ptcapEscapedChar "\\." contained
syn match ptcapEscapedChar "\^." contained
syn match ptcapEscapedChar "\\\o\{3}" contained
" A backslash at the end of a line will suppress the newline
syn match ptcapLineCont "\\$" contained
" A number follows the same rules as an integer in C
syn match ptcapNumber "#\(+\|-\)\=\d\+"lc=1 contained
syn match ptcapNumberError "#\d*[^[:digit:]:\\]"lc=1 contained
syn match ptcapNumber "#0x\x\{1,8}"lc=1 contained
syn match ptcapNumberError "#0x\X"me=e-1,lc=1 contained
syn match ptcapNumberError "#0x\x\{9}"lc=1 contained
syn match ptcapNumberError "#0x\x*[^[:xdigit:]:\\]"lc=1 contained
" The `@' operator clears a flag (i.e., sets it to zero)
" The `#' operator assigns a following number to the flag
" The `=' operator assigns a string to the preceding flag
syn match ptcapOperator "[@#=]" contained
" Some terminal capabilites have special names like `#5' and `@1', and we
" need special rules to match these properly
syn match ptcapSpecialCap "\W[#@]\d" contains=ptcapDelimiter contained
" If editing a termcap file, an entry in the database is terminated by
" a (non-escaped) newline. Otherwise, it is terminated by a line which
" does not start with a colon (:)
if exists("b:ptcap_type") && b:ptcap_type[0] == 't'
syn region ptcapEntry start="^\s*[^[:space:]:]" end="[^\\]\(\\\\\)*$" end="^$" contains=ptcapNames,ptcapField,ptcapLeadBlank keepend
else
syn region ptcapEntry start="^\s*[^[:space:]:]"me=e-1 end="^\s*[^[:space:]:#]"me=e-1 contains=ptcapNames,ptcapField,ptcapLeadBlank,ptcapComment
endif
syn region ptcapNames start="^\s*[^[:space:]:]" skip="[^\\]\(\\\\\)*\\:" end=":"me=e-1 contains=ptcapDelimiter,ptcapEscapedChar,ptcapLineCont,ptcapLeadBlank,ptcapComment keepend contained
syn region ptcapField start=":" skip="[^\\]\(\\\\\)*\\$" end="[^\\]\(\\\\\)*:"me=e-1 end="$" contains=ptcapDelimiter,ptcapString,ptcapNumber,ptcapNumberError,ptcapOperator,ptcapLineCont,ptcapSpecialCap,ptcapLeadBlank,ptcapComment keepend contained
syn region ptcapString matchgroup=ptcapOperator start="=" skip="[^\\]\(\\\\\)*\\:" matchgroup=ptcapDelimiter end=":"me=e-1 matchgroup=NONE end="[^\\]\(\\\\\)*[^\\]$" end="^$" contains=ptcapEscapedChar,ptcapLineCont keepend contained
syn region ptcapComment start="^\s*#" end="$" contains=ptcapLeadBlank
if version >= 508 || !exists("did_ptcap_syntax_inits")
if version < 508
let did_ptcap_syntax_inits = 1
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif
HiLink ptcapComment Comment
HiLink ptcapDelimiter Delimiter
" The highlighting of "ptcapEntry" should always be overridden by
" its contents, so I use Todo highlighting to indicate that there
" is work to be done with the syntax file if you can see it :-)