Added optional Lua lexer support.

This support is disabled by default and must be enabled via compile-time option.

1 files changed, 74 insertions, 0 deletions

diff --git a/lexlua/apdl.lua b/lexlua/apdl.lua
new file mode 100644
index 000000000..5a1b2e164
--- /dev/null
+++ b/lexlua/apdl.lua
@@ -0,0 +1,74 @@
+-- Copyright 2006-2018 Mitchell mitchell.att.foicica.com. See License.txt.
+-- APDL LPeg lexer.
+
+local lexer = require('lexer')
+local token, word_match = lexer.token, lexer.word_match
+local P, R, S = lpeg.P, lpeg.R, lpeg.S
+
+local lex = lexer.new('apdl', {case_insensitive_fold_points = true})
+
+-- Whitespace.
+lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
+
+-- Keywords.
+lex:add_rule('keyword', token(lexer.KEYWORD, word_match[[
+  *abbr *abb *afun *afu *ask *cfclos *cfc *cfopen *cfo *cfwrite *cfw *create
+  *cre *cycle *cyc *del *dim *do *elseif *else *enddo *endif *end *eval *eva
+  *exit *exi *get *go *if *list *lis *mfouri *mfo *mfun *mfu *mooney *moo *moper
+  *mop *msg *repeat *rep *set *status *sta *tread *tre *ulib *uli *use *vabs
+  *vab *vcol *vco *vcum *vcu *vedit *ved *vfact *vfa *vfill *vfi *vfun *vfu
+  *vget *vge *vitrp *vit *vlen *vle *vmask *vma *voper *vop *vplot *vpl *vput
+  *vpu *vread *vre *vscfun *vsc *vstat *vst *vwrite *vwr
+  /anfile /anf /angle /ang /annot /ann /anum /anu /assign /ass /auto /aut /aux15
+  /aux2 /aux /axlab /axl /batch /bat /clabel /cla /clear /cle /clog /clo /cmap
+  /cma /color /col /com /config /contour /con /copy /cop /cplane /cpl /ctype
+  /cty /cval /cva /delete /del /devdisp /device /dev /dist /dis /dscale /dsc
+  /dv3d /dv3 /edge /edg /efacet /efa /eof /erase /era /eshape /esh /exit /exi
+  /expand /exp /facet /fac /fdele /fde /filname /fil /focus /foc /format /for
+  /ftype /fty /gcmd /gcm /gcolumn /gco /gfile /gfi /gformat /gfo /gline /gli
+  /gmarker /gma /golist /gol /gopr /gop /go /graphics /gra /gresume /gre /grid
+  /gri /gropt /gro /grtyp /grt /gsave /gsa /gst /gthk /gth /gtype /gty /header
+  /hea /input /inp /larc /lar /light /lig /line /lin /lspec /lsp /lsymbol /lsy
+  /menu /men /mplib /mpl /mrep /mre /mstart /mst /nerr /ner /noerase /noe
+  /nolist /nol /nopr /nop /normal /nor /number /num /opt /output /out /page /pag
+  /pbc /pbf /pcircle /pci /pcopy /pco /plopts /plo /pmacro /pma /pmeth /pme
+  /pmore /pmo /pnum /pnu /polygon /pol /post26 /post1 /pos /prep7 /pre /psearch
+  /pse /psf /pspec /psp /pstatus /pst /psymb /psy /pwedge /pwe /quit /qui /ratio
+  /rat /rename /ren /replot /rep /reset /res /rgb /runst /run /seclib /sec /seg
+  /shade /sha /showdisp /show /sho /shrink /shr /solu /sol /sscale /ssc /status
+  /sta /stitle /sti /syp /sys /title /tit /tlabel /tla /triad /tri /trlcy /trl
+  /tspec /tsp /type /typ /ucmd /ucm /uis /ui /units /uni /user /use /vcone /vco
+  /view /vie /vscale /vsc /vup /wait /wai /window /win /xrange /xra /yrange /yra
+  /zoom /zoo
+]], true))
+
+-- Identifiers.
+lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
+
+-- Strings.
+lex:add_rule('string', token(lexer.STRING,
+                             lexer.delimited_range("'", true, true)))
+
+-- Numbers.
+lex:add_rule('number', token(lexer.NUMBER, lexer.float + lexer.integer))
+
+-- Functions.
+lex:add_rule('function', token(lexer.FUNCTION,
+                               lexer.delimited_range('%', true, true)))
+
+-- Labels.
+lex:add_rule('label', token(lexer.LABEL, lexer.starts_line(':') * lexer.word))
+
+-- Comments.
+lex:add_rule('comment', token(lexer.COMMENT, '!' * lexer.nonnewline^0))
+
+-- Operators.
+lex:add_rule('operator', token(lexer.OPERATOR, S('+-*/$=,;()')))
+
+-- Fold points.
+lex:add_fold_point(lexer.KEYWORD, '*if', '*endif')
+lex:add_fold_point(lexer.KEYWORD, '*do', '*enddo')
+lex:add_fold_point(lexer.KEYWORD, '*dowhile', '*enddo')
+lex:add_fold_point(lexer.COMMENT, '!', lexer.fold_line_comments('!'))
+
+return lex