100 lines
2.1 KiB
Text
100 lines
2.1 KiB
Text
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"" =insns
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func main { # entry point returning int
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=args # put arg array into args var
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args 0 aget =filename
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# Start compile
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filename _file compile
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0
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}
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func compile {
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=file
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# read & split content
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0 _char (file flength) anew "\n" strsplit =content
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1 neg =i
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# preprocess string
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while (i 1 + =i) (i content alen lt) {
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content i aget =ln
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# remove tabs/spaces
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while (ln 0 aget dup) eq ' ' eq '\t' or {
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# remove first character
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ln 1 ln alen strsub =ln
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}
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# remove comments
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1 neg =j
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while (j 1 + =j) (j ln alen lt) {
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(ln j aget dup =c dup) ('\"' eq '\'' eq or) if {
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j 1 + =j
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while (ln j aget dup =c dup) ('\"' eq '\'' eq or) not {
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j (c '\\' eq if { 2 } else { 1 }) + =j
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}
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}
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c '#' eq if {
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ln 0 j strsub
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1 stop
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}
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}
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}
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# join content
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content " " strjoin " " strsplit =content
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content 1 mkcode
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}
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func mkcode {
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=allowfunc
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=content
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1 neg =i
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0 dup =isnative
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dup =funcname
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dup =definefunc
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dup =level
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pop
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while (i 1 + =i) (i content alen lt) {
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content i aget =keyword
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keyword "" eq not if {
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allowfunc if {
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funcname 0 eq not keyword "{" eq and if {
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i (content i 1 + content alen strsub 0 mkcode) + =i
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content i aget =keyword
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2 stop
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}
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definefunc if {
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keyword =funcname
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}
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keyword "func" eq =definefunc
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keyword "native" eq =native
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}
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keyword '{' if { level 1 + =level }
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keyword '}' if { level 1 - =level }
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keyword 'if' if {
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}
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}
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level 1 neg eq if { 1 stop }
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}
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i
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}
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func append {
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=str
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insns str strconcat "\n" strconcat =insns
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}
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func pushElement {
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# bind args
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=x
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=type
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"PUSH " type _string strconcat append
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"PUSH " x strconcat append
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}
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