78 lines
1.2 KiB
Text
78 lines
1.2 KiB
Text
%{
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#include <stdbool.h>
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bool leave_docs = false;
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%}
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%x SINGLE_LINE
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%x MULTI_LINE
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%x STRING
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%x INCLUDE
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%%
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<INITIAL>"#include <" { ECHO; BEGIN(INCLUDE); }
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<INCLUDE>">" { ECHO; BEGIN(INITIAL); }
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<INITIAL>\" { ECHO; BEGIN(STRING); }
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<STRING>\\\" { ECHO; }
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<STRING>\" { ECHO; BEGIN(INITIAL); }
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<STRING>. { ECHO; }
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<INITIAL>"///"|"//!" {
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if (leave_docs) {
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ECHO;
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} else {
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BEGIN(SINGLE_LINE);
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}
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}
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<INITIAL>"/**/" { putchar(' '); }
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<INITIAL>"/**"|"/*!" {
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if (leave_docs) {
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ECHO;
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} else {
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BEGIN(MULTI_LINE);
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}
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}
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<INITIAL>"//" { BEGIN(SINGLE_LINE); }
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<INITIAL>. { ECHO; }
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<SINGLE_LINE>"\\\n" { }
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<SINGLE_LINE>\n { BEGIN(INITIAL); }
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<SINGLE_LINE>. { }
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<INITIAL>"/*" { BEGIN(MULTI_LINE); }
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<MULTI_LINE>"*/" { putchar(' '); BEGIN(INITIAL); }
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<MULTI_LINE>. { }
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%%
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// single line comment
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/*
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* multi line comment
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*/
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/// single line doc 1
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//! single line doc 2
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/**
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* multi line doc 1
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*/
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/*!
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* multi line doc 2
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*/
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#include <stdlib.h>
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int main(int argc, char *argv[]) {
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if (argc > 1) {
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leave_docs = true;
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}
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yylex();
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return EXIT_SUCCESS;
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}
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