171 lines
2.1 KiB
Plaintext
171 lines
2.1 KiB
Plaintext
%{
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#include "scanner.h"
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#include <stdio.h>
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#include <stack>
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#include <string>
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#include <boost/algorithm/string/trim.hpp>
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std::stack<std::string> tag_stack;
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std::string tag_candidate = "";
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static
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void _ECHO_CANDIDATE(){
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if (tag_candidate != "") {
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ECHOS(tag_candidate.c_str());
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}
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}
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#define ECHO_CANDIDATE _ECHO_CANDIDATE()
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static const char COMMENT_START[] = "<!--";
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static const char COMMENT_END[] = "-->";
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static const char ATTRIBUTE_VALUE_START[] = "'";
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static const char ATTRIBUTE_VALUE_END[] = "'";
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bool push_tag() {
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if (tag_candidate == "") {
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exit(3);
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return false;
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}
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boost::trim(tag_candidate);
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tag_stack.push(tag_candidate);
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tag_candidate = "";
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return true;
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}
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bool pop_tag() {
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tag_stack.pop();
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tag_candidate = "";
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return true;
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}
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%}
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%option noyywrap
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%option nodefault
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%option noyylineno
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%x BODY HEAD HEAD_VALUE IGNORE STRING COMMENT COMMENT_MULTILINE
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ws [ \t\r\v\f]
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wsnl [ \t\r\v\f\n]
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identifier [A-z][A-z0-9]*
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%%
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BEGIN BODY;
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<BODY>{
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\/\/ {
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BEGIN COMMENT;
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ECHOS(COMMENT_START);
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}
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\/\* {
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BEGIN COMMENT_MULTILINE;
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ECHOS(COMMENT_START);
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}
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{identifier}{wsnl}* {
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ECHO_CANDIDATE;
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tag_candidate = yytext;
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}
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\( {
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push_tag();
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ECHOS(("<" + tag_stack.top() + " ").c_str());
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BEGIN HEAD;
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}
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; {
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ECHOS(("<" + tag_candidate + "/>").c_str());
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tag_candidate = "";
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}
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\{ {
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push_tag();
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ECHOS(("<" + tag_stack.top() + ">").c_str());
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if (do_ignore(tag_stack.top())) {
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BEGIN IGNORE;
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}
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}
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\} {
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ECHO_CANDIDATE;
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ECHOS(("</" + tag_stack.top() + ">").c_str());
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pop_tag();
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}
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.|{wsnl} {
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ECHO;
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}
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}
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<COMMENT,COMMENT_MULTILINE>{
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.* {
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ECHO;
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}
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}
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<COMMENT>{
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\n {
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ECHOS(COMMENT_END);
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ECHO;
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BEGIN BODY;
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}
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}
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<COMMENT_MULTILINE>{
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\*\/ {
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ECHOS(COMMENT_END);
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BEGIN BODY;
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}
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.|\n {
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ECHO;
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}
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}
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<HEAD>{
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\){wsnl}*\{ {
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ECHOS(">");
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BEGIN BODY;
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}
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:{wsnl}* {
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ECHOS("=");
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ECHOS(ATTRIBUTE_VALUE_START);
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BEGIN HEAD_VALUE;
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}
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.|\n {
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ECHO;
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}
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}
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<HEAD_VALUE>{
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, {
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ECHOS(ATTRIBUTE_VALUE_END);
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BEGIN HEAD;
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}
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\) {
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ECHOS(ATTRIBUTE_VALUE_END);
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yyless(0);
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BEGIN HEAD;
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}
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.|\n {
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ECHO;
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}
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}
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<IGNORE>{
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\\[{|}] {
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ECHOC(yytext[1]);
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}
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\} {
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ECHOS(("</" + tag_stack.top() + ">").c_str());
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pop_tag();
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BEGIN BODY;
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}
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.|\n {
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ECHO;
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}
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}
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%%
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