notes/node_modules/postcss-scss/lib/scss-tokenize.js

345 lines
39 KiB
JavaScript

'use strict';
exports.__esModule = true;
exports.default = scssTokenize;
var SINGLE_QUOTE = 39;
var DOUBLE_QUOTE = 34;
var BACKSLASH = 92;
var SLASH = 47;
var NEWLINE = 10;
var SPACE = 32;
var FEED = 12;
var TAB = 9;
var CR = 13;
var OPEN_SQUARE = 91;
var CLOSE_SQUARE = 93;
var OPEN_PARENTHESES = 40;
var CLOSE_PARENTHESES = 41;
var OPEN_CURLY = 123;
var CLOSE_CURLY = 125;
var SEMICOLON = 59;
var ASTERICK = 42;
var COLON = 58;
var AT = 64;
// SCSS PATCH {
var COMMA = 44;
var HASH = 35;
// } SCSS PATCH
var RE_AT_END = /[ \n\t\r\f\{\(\)'"\\;/\[\]#]/g;
var RE_WORD_END = /[ \n\t\r\f\(\)\{\}:;@!'"\\\]\[#]|\/(?=\*)/g;
var RE_BAD_BRACKET = /.[\\\/\("'\n]/;
var RE_NEW_LINE = /[\r\f\n]/g; // SCSS PATCH
// SCSS PATCH function name was changed
function scssTokenize(input) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var tokens = [];
var css = input.css.valueOf();
var ignore = options.ignoreErrors;
var code = void 0,
next = void 0,
quote = void 0,
lines = void 0,
last = void 0,
content = void 0,
escape = void 0,
nextLine = void 0,
nextOffset = void 0,
escaped = void 0,
escapePos = void 0,
prev = void 0,
n = void 0;
var brackets = void 0; // SCSS PATCH
var length = css.length;
var offset = -1;
var line = 1;
var pos = 0;
function unclosed(what) {
throw input.error('Unclosed ' + what, line, pos - offset);
}
while (pos < length) {
code = css.charCodeAt(pos);
if (code === NEWLINE || code === FEED || code === CR && css.charCodeAt(pos + 1) !== NEWLINE) {
offset = pos;
line += 1;
}
switch (code) {
case NEWLINE:
case SPACE:
case TAB:
case CR:
case FEED:
next = pos;
do {
next += 1;
code = css.charCodeAt(next);
if (code === NEWLINE) {
offset = next;
line += 1;
}
} while (code === SPACE || code === NEWLINE || code === TAB || code === CR || code === FEED);
tokens.push(['space', css.slice(pos, next)]);
pos = next - 1;
break;
case OPEN_SQUARE:
tokens.push(['[', '[', line, pos - offset]);
break;
case CLOSE_SQUARE:
tokens.push([']', ']', line, pos - offset]);
break;
case OPEN_CURLY:
tokens.push(['{', '{', line, pos - offset]);
break;
case CLOSE_CURLY:
tokens.push(['}', '}', line, pos - offset]);
break;
// SCSS PATCH {
case COMMA:
tokens.push(['word', ',', line, pos - offset, line, pos - offset + 1]);
break;
// } SCSS PATCH
case COLON:
tokens.push([':', ':', line, pos - offset]);
break;
case SEMICOLON:
tokens.push([';', ';', line, pos - offset]);
break;
case OPEN_PARENTHESES:
prev = tokens.length ? tokens[tokens.length - 1][1] : '';
n = css.charCodeAt(pos + 1);
if (prev === 'url' && n !== SINGLE_QUOTE && n !== DOUBLE_QUOTE && n !== SPACE && n !== NEWLINE && n !== TAB && n !== FEED && n !== CR) {
// SCSS PATCH {
brackets = 1;
escaped = false;
next = pos + 1;
while (next <= css.length - 1) {
n = css.charCodeAt(next);
if (n === BACKSLASH) {
escaped = !escaped;
} else if (n === OPEN_PARENTHESES) {
brackets += 1;
} else if (n === CLOSE_PARENTHESES) {
brackets -= 1;
if (brackets === 0) break;
}
next += 1;
}
// } SCSS PATCH
tokens.push(['brackets', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
pos = next;
} else {
next = css.indexOf(')', pos + 1);
content = css.slice(pos, next + 1);
if (next === -1 || RE_BAD_BRACKET.test(content)) {
tokens.push(['(', '(', line, pos - offset]);
} else {
tokens.push(['brackets', content, line, pos - offset, line, next - offset]);
pos = next;
}
}
break;
case CLOSE_PARENTHESES:
tokens.push([')', ')', line, pos - offset]);
break;
case SINGLE_QUOTE:
case DOUBLE_QUOTE:
quote = code === SINGLE_QUOTE ? '\'' : '"';
next = pos;
do {
escaped = false;
next = css.indexOf(quote, next + 1);
if (next === -1) {
if (ignore) {
next = pos + 1;
break;
} else {
unclosed('quote');
}
}
escapePos = next;
while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
escapePos -= 1;
escaped = !escaped;
}
} while (escaped);
content = css.slice(pos, next + 1);
lines = content.split('\n');
last = lines.length - 1;
if (last > 0) {
nextLine = line + last;
nextOffset = next - lines[last].length;
} else {
nextLine = line;
nextOffset = offset;
}
tokens.push(['string', css.slice(pos, next + 1), line, pos - offset, nextLine, next - nextOffset]);
offset = nextOffset;
line = nextLine;
pos = next;
break;
case AT:
RE_AT_END.lastIndex = pos + 1;
RE_AT_END.test(css);
if (RE_AT_END.lastIndex === 0) {
next = css.length - 1;
} else {
next = RE_AT_END.lastIndex - 2;
}
tokens.push(['at-word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
pos = next;
break;
case BACKSLASH:
next = pos;
escape = true;
while (css.charCodeAt(next + 1) === BACKSLASH) {
next += 1;
escape = !escape;
}
code = css.charCodeAt(next + 1);
if (escape && code !== SLASH && code !== SPACE && code !== NEWLINE && code !== TAB && code !== CR && code !== FEED) {
next += 1;
}
tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
pos = next;
break;
default:
// SCSS PATCH {
n = css.charCodeAt(pos + 1);
if (code === HASH && n === OPEN_CURLY) {
var deep = 1;
next = pos;
while (deep > 0) {
next += 1;
if (css.length <= next) unclosed('interpolation');
code = css.charCodeAt(next);
n = css.charCodeAt(next + 1);
if (code === CLOSE_CURLY) {
deep -= 1;
} else if (code === HASH && n === OPEN_CURLY) {
deep += 1;
}
}
content = css.slice(pos, next + 1);
lines = content.split('\n');
last = lines.length - 1;
if (last > 0) {
nextLine = line + last;
nextOffset = next - lines[last].length;
} else {
nextLine = line;
nextOffset = offset;
}
tokens.push(['word', content, line, pos - offset, nextLine, next - nextOffset]);
offset = nextOffset;
line = nextLine;
pos = next;
} else if (code === SLASH && n === ASTERICK) {
// } SCSS PATCH
next = css.indexOf('*/', pos + 2) + 1;
if (next === 0) {
if (ignore) {
next = css.length;
} else {
unclosed('comment');
}
}
content = css.slice(pos, next + 1);
lines = content.split('\n');
last = lines.length - 1;
if (last > 0) {
nextLine = line + last;
nextOffset = next - lines[last].length;
} else {
nextLine = line;
nextOffset = offset;
}
tokens.push(['comment', content, line, pos - offset, nextLine, next - nextOffset]);
offset = nextOffset;
line = nextLine;
pos = next;
// SCSS PATCH {
} else if (code === SLASH && n === SLASH) {
RE_NEW_LINE.lastIndex = pos + 1;
RE_NEW_LINE.test(css);
if (RE_NEW_LINE.lastIndex === 0) {
next = css.length - 1;
} else {
next = RE_NEW_LINE.lastIndex - 2;
}
content = css.slice(pos, next + 1);
tokens.push(['comment', content, line, pos - offset, line, next - offset, 'inline']);
pos = next;
// } SCSS PATCH
} else {
RE_WORD_END.lastIndex = pos + 1;
RE_WORD_END.test(css);
if (RE_WORD_END.lastIndex === 0) {
next = css.length - 1;
} else {
next = RE_WORD_END.lastIndex - 2;
}
tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
pos = next;
}
break;
}
pos++;
}
return tokens;
}
module.exports = exports['default'];
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SINGLE_QUOTE      = '\\''.charCodeAt(0);\nconst DOUBLE_QUOTE      =  '\"'.charCodeAt(0);\nconst BACKSLASH         = '\\\\'.charCodeAt(0);\nconst SLASH             =  '/'.charCodeAt(0);\nconst NEWLINE           = '\\n'.charCodeAt(0);\nconst SPACE             =  ' '.charCodeAt(0);\nconst FEED              = '\\f'.charCodeAt(0);\nconst TAB               = '\\t'.charCodeAt(0);\nconst CR                = '\\r'.charCodeAt(0);\nconst OPEN_SQUARE       =  '['.charCodeAt(0);\nconst CLOSE_SQUARE      =  ']'.charCodeAt(0);\nconst OPEN_PARENTHESES  =  '('.charCodeAt(0);\nconst CLOSE_PARENTHESES =  ')'.charCodeAt(0);\nconst OPEN_CURLY        =  '{'.charCodeAt(0);\nconst CLOSE_CURLY       =  '}'.charCodeAt(0);\nconst SEMICOLON         =  ';'.charCodeAt(0);\nconst ASTERICK          =  '*'.charCodeAt(0);\nconst COLON             =  ':'.charCodeAt(0);\nconst AT                =  '@'.charCodeAt(0);\n\n// SCSS PATCH {\nconst COMMA             =  ','.charCodeAt(0);\nconst HASH              =  '#'.charCodeAt(0);\n// } SCSS PATCH\n\nconst RE_AT_END      = /[ \\n\\t\\r\\f\\{\\(\\)'\"\\\\;/\\[\\]#]/g;\nconst RE_WORD_END    = /[ \\n\\t\\r\\f\\(\\)\\{\\}:;@!'\"\\\\\\]\\[#]|\\/(?=\\*)/g;\nconst RE_BAD_BRACKET = /.[\\\\\\/\\(\"'\\n]/;\n\nconst RE_NEW_LINE    = /[\\r\\f\\n]/g; // SCSS PATCH\n\n// SCSS PATCH function name was changed\nexport default function scssTokenize(input, options = { }) {\n    let tokens = [];\n    let css    = input.css.valueOf();\n\n    let ignore = options.ignoreErrors;\n\n    let code, next, quote, lines, last, content, escape,\n        nextLine, nextOffset, escaped, escapePos, prev, n;\n\n    let brackets; // SCSS PATCH\n\n    let length = css.length;\n    let offset = -1;\n    let line   =  1;\n    let pos    =  0;\n\n    function unclosed(what) {\n        throw input.error('Unclosed ' + what, line, pos - offset);\n    }\n\n    while ( pos < length ) {\n        code = css.charCodeAt(pos);\n\n        if ( code === NEWLINE || code === FEED ||\n             code === CR && css.charCodeAt(pos + 1) !== NEWLINE ) {\n            offset = pos;\n            line  += 1;\n        }\n\n        switch ( code ) {\n        case NEWLINE:\n        case SPACE:\n        case TAB:\n        case CR:\n        case FEED:\n            next = pos;\n            do {\n                next += 1;\n                code = css.charCodeAt(next);\n                if ( code === NEWLINE ) {\n                    offset = next;\n                    line  += 1;\n                }\n            } while ( code === SPACE   ||\n                      code === NEWLINE ||\n                      code === TAB     ||\n                      code === CR      ||\n                      code === FEED );\n\n            tokens.push(['space', css.slice(pos, next)]);\n            pos = next - 1;\n            break;\n\n        case OPEN_SQUARE:\n            tokens.push(['[', '[', line, pos - offset]);\n            break;\n\n        case CLOSE_SQUARE:\n            tokens.push([']', ']', line, pos - offset]);\n            break;\n\n        case OPEN_CURLY:\n            tokens.push(['{', '{', line, pos - offset]);\n            break;\n\n        case CLOSE_CURLY:\n            tokens.push(['}', '}', line, pos - offset]);\n            break;\n\n        // SCSS PATCH {\n        case COMMA:\n            tokens.push([\n                'word',\n                ',',\n                line, pos - offset,\n                line, pos - offset + 1\n            ]);\n            break;\n        // } SCSS PATCH\n\n        case COLON:\n            tokens.push([':', ':', line, pos - offset]);\n            break;\n\n        case SEMICOLON:\n            tokens.push([';', ';', line, pos - offset]);\n            break;\n\n        case OPEN_PARENTHESES:\n            prev = tokens.length ? tokens[tokens.length - 1][1] : '';\n            n    = css.charCodeAt(pos + 1);\n            if ( prev === 'url' && n !== SINGLE_QUOTE && n !== DOUBLE_QUOTE &&\n                                   n !== SPACE && n !== NEWLINE && n !== TAB &&\n                                   n !== FEED && n !== CR ) {\n                // SCSS PATCH {\n                brackets = 1;\n                escaped  = false;\n                next     = pos + 1;\n                while ( next <= css.length - 1 ) {\n                    n = css.charCodeAt(next);\n                    if ( n === BACKSLASH ) {\n                        escaped = !escaped;\n                    } else if ( n === OPEN_PARENTHESES ) {\n                        brackets += 1;\n                    } else if ( n === CLOSE_PARENTHESES ) {\n                        brackets -= 1;\n                        if ( brackets === 0 ) break;\n                    }\n                    next += 1;\n                }\n                // } SCSS PATCH\n\n                tokens.push(['brackets', css.slice(pos, next + 1),\n                    line, pos  - offset,\n                    line, next - offset\n                ]);\n                pos = next;\n\n            } else {\n                next    = css.indexOf(')', pos + 1);\n                content = css.slice(pos, next + 1);\n\n                if ( next === -1 || RE_BAD_BRACKET.test(content) ) {\n                    tokens.push(['(', '(', line, pos - offset]);\n                } else {\n                    tokens.push(['brackets', content,\n                        line, pos  - offset,\n                        line, next - offset\n                    ]);\n                    pos = next;\n                }\n            }\n\n            break;\n\n        case CLOSE_PARENTHESES:\n            tokens.push([')', ')', line, pos - offset]);\n            break;\n\n        case SINGLE_QUOTE:\n        case DOUBLE_QUOTE:\n            quote = code === SINGLE_QUOTE ? '\\'' : '\"';\n            next  = pos;\n            do {\n                escaped = false;\n                next    = css.indexOf(quote, next + 1);\n                if ( next === -1 ) {\n                    if ( ignore ) {\n                        next = pos + 1;\n                        break;\n                    } else {\n                        unclosed('quote');\n                    }\n                }\n                escapePos = next;\n                while ( css.charCodeAt(escapePos - 1) === BACKSLASH ) {\n                    escapePos -= 1;\n                    escaped = !escaped;\n                }\n            } while ( escaped );\n\n            content = css.slice(pos, next + 1);\n            lines   = content.split('\\n');\n            last    = lines.length - 1;\n\n            if ( last > 0 ) {\n                nextLine   = line + last;\n                nextOffset = next - lines[last].length;\n            } else {\n                nextLine   = line;\n                nextOffset = offset;\n            }\n\n            tokens.push(['string', css.slice(pos, next + 1),\n                line, pos  - offset,\n                nextLine, next - nextOffset\n            ]);\n\n            offset = nextOffset;\n            line   = nextLine;\n            pos    = next;\n            break;\n\n        case AT:\n            RE_AT_END.lastIndex = pos + 1;\n            RE_AT_END.test(css);\n            if ( RE_AT_END.lastIndex === 0 ) {\n                next = css.length - 1;\n            } else {\n                next = RE_AT_END.lastIndex - 2;\n            }\n            tokens.push(['at-word', css.slice(pos, next + 1),\n                line, pos  - offset,\n                line, next - offset\n            ]);\n            pos = next;\n            break;\n\n        case BACKSLASH:\n            next   = pos;\n            escape = true;\n            while ( css.charCodeAt(next + 1) === BACKSLASH ) {\n                next  += 1;\n                escape = !escape;\n            }\n            code = css.charCodeAt(next + 1);\n            if ( escape && (code !== SLASH   &&\n                            code !== SPACE   &&\n                            code !== NEWLINE &&\n                            code !== TAB     &&\n                            code !== CR      &&\n                            code !== FEED ) ) {\n                next += 1;\n            }\n            tokens.push(['word', css.slice(pos, next + 1),\n                line, pos  - offset,\n                line, next - offset\n            ]);\n            pos = next;\n            break;\n\n        default:\n            // SCSS PATCH {\n            n = css.charCodeAt(pos + 1);\n\n            if ( code === HASH && n === OPEN_CURLY ) {\n                let deep = 1;\n                next = pos;\n                while ( deep > 0 ) {\n                    next += 1;\n                    if ( css.length <= next ) unclosed('interpolation');\n\n                    code  = css.charCodeAt(next);\n                    n     = css.charCodeAt(next + 1);\n\n                    if ( code === CLOSE_CURLY ) {\n                        deep -= 1;\n                    } else if ( code === HASH && n === OPEN_CURLY ) {\n                        deep += 1;\n                    }\n                }\n\n                content = css.slice(pos, next + 1);\n                lines   = content.split('\\n');\n                last    = lines.length - 1;\n\n                if ( last > 0 ) {\n                    nextLine   = line + last;\n                    nextOffset = next - lines[last].length;\n                } else {\n                    nextLine   = line;\n                    nextOffset = offset;\n                }\n\n                tokens.push(['word', content,\n                    line,     pos  - offset,\n                    nextLine, next - nextOffset\n                ]);\n\n                offset = nextOffset;\n                line   = nextLine;\n                pos    = next;\n\n            } else if ( code === SLASH && n === ASTERICK ) {\n            // } SCSS PATCH\n\n                next = css.indexOf('*/', pos + 2) + 1;\n                if ( next === 0 ) {\n                    if ( ignore ) {\n                        next = css.length;\n                    } else {\n                        unclosed('comment');\n                    }\n                }\n\n                content = css.slice(pos, next + 1);\n                lines   = content.split('\\n');\n                last    = lines.length - 1;\n\n                if ( last > 0 ) {\n                    nextLine   = line + last;\n                    nextOffset = next - lines[last].length;\n                } else {\n                    nextLine   = line;\n                    nextOffset = offset;\n                }\n\n                tokens.push(['comment', content,\n                    line,     pos  - offset,\n                    nextLine, next - nextOffset\n                ]);\n\n                offset = nextOffset;\n                line   = nextLine;\n                pos    = next;\n\n            // SCSS PATCH {\n            } else if ( code === SLASH && n === SLASH ) {\n                RE_NEW_LINE.lastIndex = pos + 1;\n                RE_NEW_LINE.test(css);\n                if ( RE_NEW_LINE.lastIndex === 0 ) {\n                    next = css.length - 1;\n                } else {\n                    next = RE_NEW_LINE.lastIndex - 2;\n                }\n\n                content = css.slice(pos, next + 1);\n\n                tokens.push(['comment', content,\n                    line, pos  - offset,\n                    line, next - offset,\n                    'inline'\n                ]);\n\n                pos = next;\n            // } SCSS PATCH\n\n            } else {\n                RE_WORD_END.lastIndex = pos + 1;\n                RE_WORD_END.test(css);\n                if ( RE_WORD_END.lastIndex === 0 ) {\n                    next = css.length - 1;\n                } else {\n                    next = RE_WORD_END.lastIndex - 2;\n                }\n\n                tokens.push(['word', css.slice(pos, next + 1),\n                    line, pos  - offset,\n                    line, next - offset\n                ]);\n                pos = next;\n            }\n\n            break;\n        }\n\n        pos++;\n    }\n\n    return tokens;\n}\n"]}