" Vim syntax file
" Language:	Hercules
" Maintainer:	Dana Edwards <Dana_Edwards@avanticorp.com>
" Extensions:   *.vc,*.ev,*.rs
" Last change:  02/26/1999
" Comment:      Hercules physical IC design verification software ensures
" 		that an IC's physical design matches its logical design and
" 		satisfies manufacturing rules.

" Remove any old syntax stuff hanging around
syn clear

" Ignore case
syn case ignore

" Hercules runset sections
syn match   herculesType        "^\s*\t*header"
syn match   herculesType        "^\s*\t*options"
syn match   herculesType        "^\s*\t*alias"
syn match   herculesType        "^\s*\t*assign"
syn match   herculesType        "^\s*\t*assign_property" 
syn match   herculesType        "^\s*\t*.*_options"
syn match   herculesType        "^\s*\t*check_point"
syn match   herculesType        "^\s*\t*environment"
syn match   herculesType        "^\s*\t*grid_check"
syn match   herculesType        "^\s*\t*include"
syn match   herculesType        "^\s*\t*layer_stats"
syn match   herculesType        "^\s*\t*load_group"
syn match   herculesType        "^\s*\t*restart"
syn match   herculesType        "^\s*\t*self_intersect"
syn match   herculesType        "^\s*\t*set "
syn match   herculesType        "^\s*\t*set\t"
syn match   herculesType        "^\s*\t*snap"
syn match   herculesType        "^\s*\t*system"
syn match   herculesType        "^\s*\t*variable"

" Hercules commands and keywords
syn match   herculesstatement   "^ *\(attach_property\|boolean\|cell_extent\)"
syn match   herculesstatement   "^ *\(common_hierarchy\|connection_points\)"
syn match   herculesstatement   "^ *\(copy\|data_filter\|alternate\|delete\)"
syn match   herculesstatement   "^ *\(explode\|explode_all\|find_net\|flatten\)"
syn match   herculesstatement   "^ *\(level\|negate\|polygon_features\|push\)"
syn match   herculesstatement   "^ *\(relocate\|remove_overlap\|reverse\|select\)"
syn match   herculesstatement   "^ *\(select_cell\|select_edge\|select_net\|size\)"
syn match   herculesstatement   "^ *\(text_polygon\|text_property\|area\|cut\|notch\)"
syn match   herculesstatement   "^ *\(density\|enclose\|enc\|external\|ext\|inside_edge\)"
syn match   herculesstatement   "^ *\(internal\|int\|vectorize\)"
syn match   herculesstatement   "^ *\(length\|mask_align\|moscheck\|rescheck\)"
syn match   herculesstatement   "^ *\(analysis\|buildsub\|init_lpe_db\|capacitor\)"
syn match   herculesstatement   "^ *\(device\|gendev\|nmos\|pmos\|diode\|npn\|pnp\)"
syn match   herculesstatement   "^ *\(resistor\|set_param\|save_property\|cap\|text	\)"
syn match   herculesstatement   "^ *\(res\|connect\|disconnect\|text \|text_boolean\)"
syn match   herculesstatement   "^ *\(replace_text\|create_ports\|label\|graphics\)"
syn match   herculesstatement   "^ *\(save_netlist_database\|lpe_stats\|netlist\)"
syn match   herculesstatement   "^ *\(spice\|graphics_property\|graphics_netlist\)"
syn match   herculesstatement   "^ *\(if\|error_property\|equate\|compare\)"
syn match   herculesstatement   "^ *\(antenna_fix\|c_thru\|dev_connect_check\)"
syn match   herculesstatement   "^ *\(dev_net_count\|device_count\|net_filter\)"
syn match   herculesstatement   "^ *\(net_path_check\|ratio\|process_text_opens\)"

" Hercules commands and keywords
syn keyword herculesStatement   black_box_file block compare_dir equivalence
syn keyword herculesStatement   format gdsin_dir group_dir group_dir_usage 
syn keyword herculesStatement   inlib layout_path outlib output_format 
syn keyword herculesStatement   output_layout_path schematic schematic_format
syn keyword herculesStatement   scheme_file output_block else
syn keyword herculesstatement   and or not xor andoverlap inside outside by to
syn keyword herculesstatement   with connected connected_all texted_with texted
syn keyword herculesstatement   by_property cutting edge_touch enclosing inside
syn keyword herculesstatement   inside_hole interact touching vertex

" Hercules comments
syn region herculesComment           start="/\*" end="\*/" contains=herculesTodo
syn match herculesComment            "//.*" contains=herculesTodo

" Preprocessor directives
syn match   herculesPreProc "^#.*"
syn match   herculesPreProc "^@.*"
syn match   herculesPreProc "macros"

" Hercules COMMENT option
syn match  herculesCmdCmnt "comment.*=.*"

" Spacings, Resolutions, Ranges, Ratios, etc.
syn match  herculesNumber          "-\=\<[0-9]\+L\=\>\|0[xX][0-9]\+\>"

" Parenthesis sanity checker
syn region herculesZone       matchgroup=Delimiter start="(" matchgroup=Delimiter end=")" transparent contains=ALLBUT,herculesError,herculesBraceError,herculesCurlyError
syn region herculesZone       matchgroup=Delimiter start="{" matchgroup=Delimiter end="}" transparent contains=ALLBUT,herculesError,herculesBraceError,herculesParenError
syn region herculesZone       matchgroup=Delimiter start="\[" matchgroup=Delimiter end="]" transparent contains=ALLBUT,herculesError,herculesCurlyError,herculesParenError
syn match  herculesError      "[)\]}]"
syn match  herculesBraceError "[)}]"  contained
syn match  herculesCurlyError "[)\]]" contained
syn match  herculesParenError "[\]}]" contained

" Hercules output format
syn match  herculesOutput "([0-9].*)"
syn match  herculesOutput "([0-9].*\;.*)"
syn match  herculesOutput "perm.*=.*"
syn match  herculesOutput "temp.*=.*"
syn match  herculesOutput "error\s*=\s*(.*)"

"Modify the following as needed.  The trade-off is performance versus functionality.
syn sync lines=100

if !exists("did_hercules_syntax_inits")
  let did_hercules_syntax_inits = 1
 " Default methods for highlighting.
  hi link herculesStatement  Statement
  hi link herculesType       Type
  hi link herculesComment    Comment
  hi link herculesPreProc    PreProc
  hi link herculesTodo       Todo
  hi link herculesOutput     Include
  hi link herculesCmdCmnt    Identifier
  hi link herculesNumber     Number
  hi link herculesBraceError herculesError
  hi link herculesCurlyError herculesError
  hi link herculesParenError herculesError
  hi link herculesError      Error
endif

let b:current_syntax = "hercules"

" vim: ts=8