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/**
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* sass2scss
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* Licensed under the MIT License
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* Copyright (c) Marcel Greter
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*/
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#ifdef _MSC_VER
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#define _CRT_SECURE_NO_WARNINGS
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#define _CRT_NONSTDC_NO_DEPRECATE
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#endif
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// include library
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#include <stack>
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#include <string>
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#include <cstring>
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#include <cstdlib>
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#include <sstream>
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#include <iostream>
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#include <stdio.h>
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///*
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//
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// src comments: comments in sass syntax (staring with //)
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// css comments: multiline comments in css syntax (starting with /*)
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//
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// KEEP_COMMENT: keep src comments in the resulting css code
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// STRIP_COMMENT: strip out all comments (either src or css)
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// CONVERT_COMMENT: convert all src comments to css comments
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//
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//*/
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// our own header
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#include "sass2scss.h"
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// add namespace for c++
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namespace Sass
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{
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// return the actual prettify value from options
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#define PRETTIFY(converter) (converter.options - (converter.options & 248))
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// query the options integer to check if the option is enables
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#define KEEP_COMMENT(converter) ((converter.options & SASS2SCSS_KEEP_COMMENT) == SASS2SCSS_KEEP_COMMENT)
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#define STRIP_COMMENT(converter) ((converter.options & SASS2SCSS_STRIP_COMMENT) == SASS2SCSS_STRIP_COMMENT)
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#define CONVERT_COMMENT(converter) ((converter.options & SASS2SCSS_CONVERT_COMMENT) == SASS2SCSS_CONVERT_COMMENT)
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// some makros to access the indentation stack
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#define INDENT(converter) (converter.indents.top())
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// some makros to query comment parser status
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#define IS_PARSING(converter) (converter.comment == "")
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#define IS_COMMENT(converter) (converter.comment != "")
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#define IS_SRC_COMMENT(converter) (converter.comment == "//" && ! CONVERT_COMMENT(converter))
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#define IS_CSS_COMMENT(converter) (converter.comment == "/*" || (converter.comment == "//" && CONVERT_COMMENT(converter)))
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// pretty printer helper function
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static std::string closer (const converter& converter)
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{
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return PRETTIFY(converter) == 0 ? " }" :
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PRETTIFY(converter) <= 1 ? " }" :
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"\n" + INDENT(converter) + "}";
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}
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// pretty printer helper function
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static std::string opener (const converter& converter)
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{
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return PRETTIFY(converter) == 0 ? " { " :
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PRETTIFY(converter) <= 2 ? " {" :
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"\n" + INDENT(converter) + "{";
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}
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// check if the given string is a pseudo selector
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// needed to differentiate from sass property syntax
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static bool isPseudoSelector (std::string& sel)
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{
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size_t len = sel.length();
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if (len < 1) return false;
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size_t pos = sel.find_first_not_of("abcdefghijklmnopqrstuvwxyz-ABCDEFGHIJKLMNOPQRSTUVWXYZ", 1);
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if (pos != std::string::npos) sel.erase(pos, std::string::npos);
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size_t i = sel.length();
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while (i -- > 0) { sel.at(i) = tolower(sel.at(i)); }
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// CSS Level 1 - Recommendation
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if (sel == ":link") return true;
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if (sel == ":visited") return true;
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if (sel == ":active") return true;
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// CSS Level 2 (Revision 1) - Recommendation
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if (sel == ":lang") return true;
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if (sel == ":first-child") return true;
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if (sel == ":hover") return true;
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if (sel == ":focus") return true;
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// disabled - also valid properties
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// if (sel == ":left") return true;
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// if (sel == ":right") return true;
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if (sel == ":first") return true;
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// Selectors Level 3 - Recommendation
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if (sel == ":target") return true;
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if (sel == ":root") return true;
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if (sel == ":nth-child") return true;
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if (sel == ":nth-last-of-child") return true;
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if (sel == ":nth-of-type") return true;
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if (sel == ":nth-last-of-type") return true;
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if (sel == ":last-child") return true;
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if (sel == ":first-of-type") return true;
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if (sel == ":last-of-type") return true;
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if (sel == ":only-child") return true;
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if (sel == ":only-of-type") return true;
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if (sel == ":empty") return true;
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if (sel == ":not") return true;
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// CSS Basic User Interface Module Level 3 - Working Draft
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if (sel == ":default") return true;
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if (sel == ":valid") return true;
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if (sel == ":invalid") return true;
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if (sel == ":in-range") return true;
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if (sel == ":out-of-range") return true;
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if (sel == ":required") return true;
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if (sel == ":optional") return true;
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if (sel == ":read-only") return true;
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if (sel == ":read-write") return true;
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if (sel == ":dir") return true;
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if (sel == ":enabled") return true;
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if (sel == ":disabled") return true;
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if (sel == ":checked") return true;
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if (sel == ":indeterminate") return true;
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if (sel == ":nth-last-child") return true;
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// Selectors Level 4 - Working Draft
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if (sel == ":any-link") return true;
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if (sel == ":local-link") return true;
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if (sel == ":scope") return true;
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if (sel == ":active-drop-target") return true;
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if (sel == ":valid-drop-target") return true;
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if (sel == ":invalid-drop-target") return true;
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if (sel == ":current") return true;
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if (sel == ":past") return true;
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if (sel == ":future") return true;
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if (sel == ":placeholder-shown") return true;
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if (sel == ":user-error") return true;
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if (sel == ":blank") return true;
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if (sel == ":nth-match") return true;
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if (sel == ":nth-last-match") return true;
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if (sel == ":nth-column") return true;
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if (sel == ":nth-last-column") return true;
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if (sel == ":matches") return true;
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// Fullscreen API - Living Standard
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if (sel == ":fullscreen") return true;
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// not a pseudo selector
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return false;
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}
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// check if there is some char data
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// will ignore everything in comments
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static bool hasCharData (std::string& sass)
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{
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size_t col_pos = 0;
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while (true)
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{
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// try to find some meaningfull char
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col_pos = sass.find_first_not_of(" \t\n\v\f\r", col_pos);
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// there was no meaningfull char found
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if (col_pos == std::string::npos) return false;
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// found a multiline comment opener
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if (sass.substr(col_pos, 2) == "/*")
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{
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// find the multiline comment closer
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col_pos = sass.find("*/", col_pos);
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// maybe we did not find the closer here
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if (col_pos == std::string::npos) return false;
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// skip closer
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col_pos += 2;
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}
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else
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{
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return true;
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}
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}
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}
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// EO hasCharData
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// find src comment opener
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// correctly skips quoted strings
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static size_t findCommentOpener (std::string& sass)
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{
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size_t col_pos = 0;
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bool apoed = false;
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bool quoted = false;
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bool comment = false;
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size_t brackets = 0;
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while (col_pos != std::string::npos)
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{
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// process all interesting chars
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col_pos = sass.find_first_of("\"\'/\\*()", col_pos);
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// assertion for valid result
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if (col_pos != std::string::npos)
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{
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char character = sass.at(col_pos);
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if (character == '(')
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{
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if (!quoted && !apoed) brackets ++;
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}
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else if (character == ')')
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{
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if (!quoted && !apoed) brackets --;
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}
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else if (character == '\"')
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{
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// invert quote bool
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if (!apoed && !comment) quoted = !quoted;
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}
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else if (character == '\'')
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{
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// invert quote bool
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if (!quoted && !comment) apoed = !apoed;
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}
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else if (col_pos > 0 && character == '/')
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{
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if (sass.at(col_pos - 1) == '*')
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{
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comment = false;
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}
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// next needs to be a slash too
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else if (sass.at(col_pos - 1) == '/')
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{
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// only found if not in single or double quote, bracket or comment
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if (!quoted && !apoed && !comment && brackets == 0) return col_pos - 1;
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}
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}
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else if (character == '\\')
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{
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// skip next char if in quote
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if (quoted || apoed) col_pos ++;
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}
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// this might be a comment opener
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else if (col_pos > 0 && character == '*')
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{
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// opening a multiline comment
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if (sass.at(col_pos - 1) == '/')
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{
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// we are now in a comment
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if (!quoted && !apoed) comment = true;
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}
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}
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// skip char
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col_pos ++;
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}
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}
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// EO while
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return col_pos;
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}
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// EO findCommentOpener
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// remove multiline comments from sass string
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// correctly skips quoted strings
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static std::string removeMultilineComment (std::string &sass)
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{
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std::string clean = "";
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size_t col_pos = 0;
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size_t open_pos = 0;
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size_t close_pos = 0;
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bool apoed = false;
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bool quoted = false;
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bool comment = false;
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// process sass til string end
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while (col_pos != std::string::npos)
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{
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// process all interesting chars
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col_pos = sass.find_first_of("\"\'/\\*", col_pos);
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// assertion for valid result
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if (col_pos != std::string::npos)
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{
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char character = sass.at(col_pos);
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// found quoted string delimiter
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if (character == '\"')
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{
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if (!apoed && !comment) quoted = !quoted;
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}
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else if (character == '\'')
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{
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if (!quoted && !comment) apoed = !apoed;
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}
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// found possible comment closer
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|
Packit |
bfcc33 |
else if (character == '/')
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// look back to see if it is actually a closer
|
|
Packit |
bfcc33 |
if (comment && col_pos > 0 && sass.at(col_pos - 1) == '*')
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
close_pos = col_pos + 1; comment = false;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
else if (character == '\\')
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// skip escaped char
|
|
Packit |
bfcc33 |
if (quoted || apoed) col_pos ++;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// this might be a comment opener
|
|
Packit |
bfcc33 |
else if (character == '*')
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// look back to see if it is actually an opener
|
|
Packit |
bfcc33 |
if (!quoted && !apoed && col_pos > 0 && sass.at(col_pos - 1) == '/')
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
comment = true; open_pos = col_pos - 1;
|
|
Packit |
bfcc33 |
clean += sass.substr(close_pos, open_pos - close_pos);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// skip char
|
|
Packit |
bfcc33 |
col_pos ++;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO while
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// add final parts (add half open comment text)
|
|
Packit |
bfcc33 |
if (comment) clean += sass.substr(open_pos);
|
|
Packit |
bfcc33 |
else clean += sass.substr(close_pos);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// return string
|
|
Packit |
bfcc33 |
return clean;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO removeMultilineComment
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// right trim a given string
|
|
Packit |
bfcc33 |
std::string rtrim(const std::string &sass)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
std::string trimmed = sass;
|
|
Packit |
bfcc33 |
size_t pos_ws = trimmed.find_last_not_of(" \t\n\v\f\r");
|
|
Packit |
bfcc33 |
if (pos_ws != std::string::npos)
|
|
Packit |
bfcc33 |
{ trimmed.erase(pos_ws + 1); }
|
|
Packit |
bfcc33 |
else { trimmed.clear(); }
|
|
Packit |
bfcc33 |
return trimmed;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO rtrim
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// flush whitespace and print additional text, but
|
|
Packit |
bfcc33 |
// only print additional chars and buffer whitespace
|
|
Packit |
bfcc33 |
std::string flush (std::string& sass, converter& converter)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// return flushed
|
|
Packit |
bfcc33 |
std::string scss = "";
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// print whitespace buffer
|
|
Packit |
bfcc33 |
scss += PRETTIFY(converter) > 0 ?
|
|
Packit |
bfcc33 |
converter.whitespace : "";
|
|
Packit |
bfcc33 |
// reset whitespace buffer
|
|
Packit |
bfcc33 |
converter.whitespace = "";
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// remove possible newlines from string
|
|
Packit |
bfcc33 |
size_t pos_right = sass.find_last_not_of("\n\r");
|
|
Packit |
bfcc33 |
if (pos_right == std::string::npos) return scss;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// get the linefeeds from the string
|
|
Packit |
bfcc33 |
std::string lfs = sass.substr(pos_right + 1);
|
|
Packit |
bfcc33 |
sass = sass.substr(0, pos_right + 1);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// find some source comment opener
|
|
Packit |
bfcc33 |
size_t comment_pos = findCommentOpener(sass);
|
|
Packit |
bfcc33 |
// check if there was a source comment
|
|
Packit |
bfcc33 |
if (comment_pos != std::string::npos)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// convert comment (but only outside other coments)
|
|
Packit |
bfcc33 |
if (CONVERT_COMMENT(converter) && !IS_COMMENT(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// convert to multiline comment
|
|
Packit |
bfcc33 |
sass.at(comment_pos + 1) = '*';
|
|
Packit |
bfcc33 |
// add comment node to the whitespace
|
|
Packit |
bfcc33 |
sass += " */";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// not at line start
|
|
Packit |
bfcc33 |
if (comment_pos > 0)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// also include whitespace before the actual comment opener
|
|
Packit |
bfcc33 |
size_t ws_pos = sass.find_last_not_of(SASS2SCSS_FIND_WHITESPACE, comment_pos - 1);
|
|
Packit |
bfcc33 |
comment_pos = ws_pos == std::string::npos ? 0 : ws_pos + 1;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
if (!STRIP_COMMENT(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// add comment node to the whitespace
|
|
Packit |
bfcc33 |
converter.whitespace += sass.substr(comment_pos);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
else
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// sass = removeMultilineComments(sass);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// update the actual sass code
|
|
Packit |
bfcc33 |
sass = sass.substr(0, comment_pos);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// add newline as getline discharged it
|
|
Packit |
bfcc33 |
converter.whitespace += lfs + "\n";
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// maybe remove any leading whitespace
|
|
Packit |
bfcc33 |
if (PRETTIFY(converter) == 0)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// remove leading whitespace and update string
|
|
Packit |
bfcc33 |
size_t pos_left = sass.find_first_not_of(SASS2SCSS_FIND_WHITESPACE);
|
|
Packit |
bfcc33 |
if (pos_left != std::string::npos) sass = sass.substr(pos_left);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// add flushed data
|
|
Packit |
bfcc33 |
scss += sass;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// return string
|
|
Packit |
bfcc33 |
return scss;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO flush
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// process a line of the sass text
|
|
Packit |
bfcc33 |
std::string process (std::string& sass, converter& converter)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// resulting string
|
|
Packit |
bfcc33 |
std::string scss = "";
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// strip multi line comments
|
|
Packit |
bfcc33 |
if (STRIP_COMMENT(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
sass = removeMultilineComment(sass);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// right trim input
|
|
Packit |
bfcc33 |
sass = rtrim(sass);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// get postion of first meaningfull character in string
|
|
Packit |
bfcc33 |
size_t pos_left = sass.find_first_not_of(SASS2SCSS_FIND_WHITESPACE);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// special case for final run
|
|
Packit |
bfcc33 |
if (converter.end_of_file) pos_left = 0;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// maybe has only whitespace
|
|
Packit |
bfcc33 |
if (pos_left == std::string::npos)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// just add complete whitespace
|
|
Packit |
bfcc33 |
converter.whitespace += sass + "\n";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// have meaningfull first char
|
|
Packit |
bfcc33 |
else
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// extract and store indentation string
|
|
Packit |
bfcc33 |
std::string indent = sass.substr(0, pos_left);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// check if current line starts a comment
|
|
Packit |
bfcc33 |
std::string open = sass.substr(pos_left, 2);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// line has less or same indentation
|
|
Packit |
bfcc33 |
// finalize previous open parser context
|
|
Packit |
bfcc33 |
if (indent.length() <= INDENT(converter).length())
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// close multilinie comment
|
|
Packit |
bfcc33 |
if (IS_CSS_COMMENT(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// check if comments will be stripped anyway
|
|
Packit |
bfcc33 |
if (!STRIP_COMMENT(converter)) scss += " */";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// close src comment comment
|
|
Packit |
bfcc33 |
else if (IS_SRC_COMMENT(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// add a newline to avoid closer on same line
|
|
Packit |
bfcc33 |
// this would put the bracket in the comment node
|
|
Packit |
bfcc33 |
// no longer needed since we parse them correctly
|
|
Packit |
bfcc33 |
// if (KEEP_COMMENT(converter)) scss += "\n";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// close css properties
|
|
Packit |
bfcc33 |
else if (converter.property)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// add closer unless in concat mode
|
|
Packit |
bfcc33 |
if (!converter.comma)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// if there was no colon we have a selector
|
|
Packit |
bfcc33 |
// looks like there were no inner properties
|
|
Packit |
bfcc33 |
if (converter.selector) scss += " {}";
|
|
Packit |
bfcc33 |
// add final semicolon
|
|
Packit |
bfcc33 |
else if (!converter.semicolon) scss += ";";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// reset comment state
|
|
Packit |
bfcc33 |
converter.comment = "";
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// make sure we close every "higher" block
|
|
Packit |
bfcc33 |
while (indent.length() < INDENT(converter).length())
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// pop stacked context
|
|
Packit |
bfcc33 |
converter.indents.pop();
|
|
Packit |
bfcc33 |
// print close bracket
|
|
Packit |
bfcc33 |
if (IS_PARSING(converter))
|
|
Packit |
bfcc33 |
{ scss += closer(converter); }
|
|
Packit |
bfcc33 |
else { scss += " */"; }
|
|
Packit |
bfcc33 |
// reset comment state
|
|
Packit |
bfcc33 |
converter.comment = "";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// reset converter state
|
|
Packit |
bfcc33 |
converter.selector = false;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// looks like some undocumented behavior ...
|
|
Packit |
bfcc33 |
// https://github.com/mgreter/sass2scss/issues/29
|
|
Packit |
bfcc33 |
if (sass.substr(pos_left, 1) == "\\") {
|
|
Packit |
bfcc33 |
converter.selector = true;
|
|
Packit |
bfcc33 |
sass[pos_left] = ' ';
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// check if we have sass property syntax
|
|
Packit |
bfcc33 |
if (sass.substr(pos_left, 1) == ":" && sass.substr(pos_left, 2) != "::")
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// default to a selector
|
|
Packit |
bfcc33 |
// change back if property found
|
|
Packit |
bfcc33 |
converter.selector = true;
|
|
Packit |
bfcc33 |
// get postion of first whitespace char
|
|
Packit |
bfcc33 |
size_t pos_wspace = sass.find_first_of(SASS2SCSS_FIND_WHITESPACE, pos_left);
|
|
Packit |
bfcc33 |
// assertion check for valid result
|
|
Packit |
bfcc33 |
if (pos_wspace != std::string::npos)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// get the possible pseudo selector
|
|
Packit |
bfcc33 |
std::string pseudo = sass.substr(pos_left, pos_wspace - pos_left);
|
|
Packit |
bfcc33 |
// get position of the first real property value char
|
|
Packit |
bfcc33 |
// pseudo selectors get this far, but have no actual value
|
|
Packit |
bfcc33 |
size_t pos_value = sass.find_first_not_of(SASS2SCSS_FIND_WHITESPACE, pos_wspace);
|
|
Packit |
bfcc33 |
// assertion check for valid result
|
|
Packit |
bfcc33 |
if (pos_value != std::string::npos)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// only process if not (fallowed by a semicolon or is a pseudo selector)
|
|
Packit |
bfcc33 |
if (!(sass.at(pos_value) == ':' || isPseudoSelector(pseudo)))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// create new string by interchanging the colon sign for property and value
|
|
Packit |
bfcc33 |
sass = indent + sass.substr(pos_left + 1, pos_wspace - pos_left - 1) + ":" + sass.substr(pos_wspace);
|
|
Packit |
bfcc33 |
// try to find a colon in the current line, but only ...
|
|
Packit |
bfcc33 |
size_t pos_colon = sass.find_first_not_of(":", pos_left);
|
|
Packit |
bfcc33 |
// assertion for valid result
|
|
Packit |
bfcc33 |
if (pos_colon != std::string::npos)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// ... after the first word (skip begining colons)
|
|
Packit |
bfcc33 |
pos_colon = sass.find_first_of(":", pos_colon);
|
|
Packit |
bfcc33 |
// it is a selector if there was no colon found
|
|
Packit |
bfcc33 |
converter.selector = pos_colon == std::string::npos;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// check if we have a BEM property (one colon and no selector)
|
|
Packit |
bfcc33 |
if (sass.substr(pos_left, 1) == ":" && converter.selector == true) {
|
|
Packit |
bfcc33 |
size_t pos_wspace = sass.find_first_of(SASS2SCSS_FIND_WHITESPACE, pos_left);
|
|
Packit |
bfcc33 |
sass = indent + sass.substr(pos_left + 1, pos_wspace) + ":";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// terminate some statements immediately
|
|
Packit |
bfcc33 |
else if (
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 5) == "@warn" ||
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 6) == "@debug" ||
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 6) == "@error" ||
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 8) == "@charset" ||
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 10) == "@namespace"
|
|
Packit |
bfcc33 |
) { sass = indent + sass.substr(pos_left); }
|
|
Packit |
bfcc33 |
// replace some specific sass shorthand directives (if not fallowed by a white space character)
|
|
Packit |
bfcc33 |
else if (sass.substr(pos_left, 1) == "=")
|
|
Packit |
bfcc33 |
{ sass = indent + "@mixin " + sass.substr(pos_left + 1); }
|
|
Packit |
bfcc33 |
else if (sass.substr(pos_left, 1) == "+")
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// must be followed by a mixin call (no whitespace afterwards or at ending directly)
|
|
Packit |
bfcc33 |
if (sass[pos_left+1] != 0 && sass[pos_left+1] != ' ' && sass[pos_left+1] != '\t') {
|
|
Packit |
bfcc33 |
sass = indent + "@include " + sass.substr(pos_left + 1);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// add quotes for import if needed
|
|
Packit |
bfcc33 |
else if (sass.substr(pos_left, 7) == "@import")
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// get positions for the actual import url
|
|
Packit |
bfcc33 |
size_t pos_import = sass.find_first_of(SASS2SCSS_FIND_WHITESPACE, pos_left + 7);
|
|
Packit |
bfcc33 |
size_t pos_quote = sass.find_first_not_of(SASS2SCSS_FIND_WHITESPACE, pos_import);
|
|
Packit |
bfcc33 |
// leave proper urls untouched
|
|
Packit |
bfcc33 |
if (sass.substr(pos_quote, 4) != "url(")
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// check if the url appears to be already quoted
|
|
Packit |
bfcc33 |
if (sass.substr(pos_quote, 1) != "\"" && sass.substr(pos_quote, 1) != "\'")
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// get position of the last char on the line
|
|
Packit |
bfcc33 |
size_t pos_end = sass.find_last_not_of(SASS2SCSS_FIND_WHITESPACE);
|
|
Packit |
bfcc33 |
// assertion check for valid result
|
|
Packit |
bfcc33 |
if (pos_end != std::string::npos)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// add quotes around the full line after the import statement
|
|
Packit |
bfcc33 |
sass = sass.substr(0, pos_quote) + "\"" + sass.substr(pos_quote, pos_end - pos_quote + 1) + "\"";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
else if (
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 7) != "@return" &&
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 7) != "@extend" &&
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 8) != "@include" &&
|
|
Packit |
bfcc33 |
sass.substr(pos_left, 8) != "@content"
|
|
Packit |
bfcc33 |
) {
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// probably a selector anyway
|
|
Packit |
bfcc33 |
converter.selector = true;
|
|
Packit |
bfcc33 |
// try to find first colon in the current line
|
|
Packit |
bfcc33 |
size_t pos_colon = sass.find_first_of(":", pos_left);
|
|
Packit |
bfcc33 |
// assertion that we have a colon
|
|
Packit |
bfcc33 |
if (pos_colon != std::string::npos)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// it is not a selector if we have a space after a colon
|
|
Packit |
bfcc33 |
if (sass[pos_colon+1] == ' ') converter.selector = false;
|
|
Packit |
bfcc33 |
if (sass[pos_colon+1] == ' ') converter.selector = false;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// current line has more indentation
|
|
Packit |
bfcc33 |
if (indent.length() >= INDENT(converter).length())
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// not in comment mode
|
|
Packit |
bfcc33 |
if (IS_PARSING(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// has meaningfull chars
|
|
Packit |
bfcc33 |
if (hasCharData(sass))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// is probably a property
|
|
Packit |
bfcc33 |
// also true for selectors
|
|
Packit |
bfcc33 |
converter.property = true;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// current line has more indentation
|
|
Packit |
bfcc33 |
if (indent.length() > INDENT(converter).length())
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// not in comment mode
|
|
Packit |
bfcc33 |
if (IS_PARSING(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// had meaningfull chars
|
|
Packit |
bfcc33 |
if (converter.property)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// print block opener
|
|
Packit |
bfcc33 |
scss += opener(converter);
|
|
Packit |
bfcc33 |
// push new stack context
|
|
Packit |
bfcc33 |
converter.indents.push("");
|
|
Packit |
bfcc33 |
// store block indentation
|
|
Packit |
bfcc33 |
INDENT(converter) = indent;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// is and will be a src comment
|
|
Packit |
bfcc33 |
else if (!IS_CSS_COMMENT(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// scss does not allow multiline src comments
|
|
Packit |
bfcc33 |
// therefore add forward slashes to all lines
|
|
Packit |
bfcc33 |
sass.at(INDENT(converter).length()+0) = '/';
|
|
Packit |
bfcc33 |
// there is an edge case here if indentation
|
|
Packit |
bfcc33 |
// is minimal (will overwrite the fist char)
|
|
Packit |
bfcc33 |
sass.at(INDENT(converter).length()+1) = '/';
|
|
Packit |
bfcc33 |
// could code around that, but I dont' think
|
|
Packit |
bfcc33 |
// this will ever be the cause for any trouble
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// line is opening a new comment
|
|
Packit |
bfcc33 |
if (open == "/*" || open == "//")
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// reset the property state
|
|
Packit |
bfcc33 |
converter.property = false;
|
|
Packit |
bfcc33 |
// close previous comment
|
|
Packit |
bfcc33 |
if (IS_CSS_COMMENT(converter) && open != "")
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
if (!STRIP_COMMENT(converter) && !CONVERT_COMMENT(converter)) scss += " */";
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// force single line comments
|
|
Packit |
bfcc33 |
// into a correct css comment
|
|
Packit |
bfcc33 |
if (CONVERT_COMMENT(converter))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
if (IS_PARSING(converter))
|
|
Packit |
bfcc33 |
{ sass.at(pos_left + 1) = '*'; }
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// set comment flag
|
|
Packit |
bfcc33 |
converter.comment = open;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// flush data only under certain conditions
|
|
Packit |
bfcc33 |
if (!(
|
|
Packit |
bfcc33 |
// strip css and src comments if option is set
|
|
Packit |
bfcc33 |
(IS_COMMENT(converter) && STRIP_COMMENT(converter)) ||
|
|
Packit |
bfcc33 |
// strip src comment even if strip option is not set
|
|
Packit |
bfcc33 |
// but only if the keep src comment option is not set
|
|
Packit |
bfcc33 |
(IS_SRC_COMMENT(converter) && ! KEEP_COMMENT(converter))
|
|
Packit |
bfcc33 |
))
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
// flush data and buffer whitespace
|
|
Packit |
bfcc33 |
scss += flush(sass, converter);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// get postion of last meaningfull char
|
|
Packit |
bfcc33 |
size_t pos_right = sass.find_last_not_of(SASS2SCSS_FIND_WHITESPACE);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// check for invalid result
|
|
Packit |
bfcc33 |
if (pos_right != std::string::npos)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// get the last meaningfull char
|
|
Packit |
bfcc33 |
std::string close = sass.substr(pos_right, 1);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// check if next line should be concatenated (list mode)
|
|
Packit |
bfcc33 |
converter.comma = IS_PARSING(converter) && close == ",";
|
|
Packit |
bfcc33 |
converter.semicolon = IS_PARSING(converter) && close == ";";
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// check if we have more than
|
|
Packit |
bfcc33 |
// one meaningfull char
|
|
Packit |
bfcc33 |
if (pos_right > 0)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// get the last two chars from string
|
|
Packit |
bfcc33 |
std::string close = sass.substr(pos_right - 1, 2);
|
|
Packit |
bfcc33 |
// update parser status for expicitly closed comment
|
|
Packit |
bfcc33 |
if (close == "*/") converter.comment = "";
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO have meaningfull chars from end
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO have meaningfull chars from start
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// return scss
|
|
Packit |
bfcc33 |
return scss;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO process
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// read line with either CR, LF or CR LF format
|
|
Packit |
bfcc33 |
// http://stackoverflow.com/a/6089413/1550314
|
|
Packit |
bfcc33 |
static std::istream& safeGetline(std::istream& is, std::string& t)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
t.clear();
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// The characters in the stream are read one-by-one using a std::streambuf.
|
|
Packit |
bfcc33 |
// That is faster than reading them one-by-one using the std::istream.
|
|
Packit |
bfcc33 |
// Code that uses streambuf this way must be guarded by a sentry object.
|
|
Packit |
bfcc33 |
// The sentry object performs various tasks,
|
|
Packit |
bfcc33 |
// such as thread synchronization and updating the stream state.
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
std::istream::sentry se(is, true);
|
|
Packit |
bfcc33 |
std::streambuf* sb = is.rdbuf();
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
for(;;) {
|
|
Packit |
bfcc33 |
int c = sb->sbumpc();
|
|
Packit |
bfcc33 |
switch (c) {
|
|
Packit |
bfcc33 |
case '\n':
|
|
Packit |
bfcc33 |
return is;
|
|
Packit |
bfcc33 |
case '\r':
|
|
Packit |
bfcc33 |
if(sb->sgetc() == '\n')
|
|
Packit |
bfcc33 |
sb->sbumpc();
|
|
Packit |
bfcc33 |
return is;
|
|
Packit |
bfcc33 |
case EOF:
|
|
Packit |
bfcc33 |
// Also handle the case when the last line has no line ending
|
|
Packit |
bfcc33 |
if(t.empty())
|
|
Packit |
bfcc33 |
is.setstate(std::ios::eofbit);
|
|
Packit |
bfcc33 |
return is;
|
|
Packit |
bfcc33 |
default:
|
|
Packit |
bfcc33 |
t += (char)c;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// the main converter function for c++
|
|
Packit |
bfcc33 |
char* sass2scss (const std::string& sass, const int options)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// local variables
|
|
Packit |
bfcc33 |
std::string line;
|
|
Packit |
bfcc33 |
std::string scss = "";
|
|
Packit |
bfcc33 |
std::stringstream stream(sass);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// create converter variable
|
|
Packit |
bfcc33 |
converter converter;
|
|
Packit |
bfcc33 |
// initialise all options
|
|
Packit |
bfcc33 |
converter.comma = false;
|
|
Packit |
bfcc33 |
converter.property = false;
|
|
Packit |
bfcc33 |
converter.selector = false;
|
|
Packit |
bfcc33 |
converter.semicolon = false;
|
|
Packit |
bfcc33 |
converter.end_of_file = false;
|
|
Packit |
bfcc33 |
converter.comment = "";
|
|
Packit |
bfcc33 |
converter.whitespace = "";
|
|
Packit |
bfcc33 |
converter.indents.push("");
|
|
Packit |
bfcc33 |
converter.options = options;
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// read line by line and process them
|
|
Packit |
bfcc33 |
while(safeGetline(stream, line) && !stream.eof())
|
|
Packit |
bfcc33 |
{ scss += process(line, converter); }
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// create mutable string
|
|
Packit |
bfcc33 |
std::string closer = "";
|
|
Packit |
bfcc33 |
// set the end of file flag
|
|
Packit |
bfcc33 |
converter.end_of_file = true;
|
|
Packit |
bfcc33 |
// process to close all open blocks
|
|
Packit |
bfcc33 |
scss += process(closer, converter);
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// allocate new memory on the heap
|
|
Packit |
bfcc33 |
// caller has to free it after use
|
|
Packit |
bfcc33 |
char * cstr = (char*) malloc (scss.length() + 1);
|
|
Packit |
bfcc33 |
// create a copy of the string
|
|
Packit |
bfcc33 |
strcpy (cstr, scss.c_str());
|
|
Packit |
bfcc33 |
// return pointer
|
|
Packit |
bfcc33 |
return &cstr[0];
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO sass2scss
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
// EO namespace
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// implement for c
|
|
Packit |
bfcc33 |
extern "C"
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
char* ADDCALL sass2scss (const char* sass, const int options)
|
|
Packit |
bfcc33 |
{
|
|
Packit |
bfcc33 |
return Sass::sass2scss(sass, options);
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
// Get compiled sass2scss version
|
|
Packit |
bfcc33 |
const char* ADDCALL sass2scss_version(void) {
|
|
Packit |
bfcc33 |
return SASS2SCSS_VERSION;
|
|
Packit |
bfcc33 |
}
|
|
Packit |
bfcc33 |
|
|
Packit |
bfcc33 |
}
|