Alex Kocharin
10 years ago
13 changed files with 269 additions and 175 deletions
@ -0,0 +1,151 @@ |
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'use strict'; |
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var parseLinkDestination = require('../helpers/parse_link_destination'); |
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var parseLinkTitle = require('../helpers/parse_link_title'); |
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var normalizeReference = require('../helpers/normalize_reference'); |
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module.exports = function reference(state, startLine, _endLine, silent) { |
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var ch, |
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destEndPos, |
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destEndLineNo, |
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endLine, |
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href, |
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i, |
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l, |
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label, |
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labelEnd, |
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res, |
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start, |
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str, |
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terminate, |
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terminatorRules, |
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title, |
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lines = 0, |
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pos = state.bMarks[startLine] + state.tShift[startLine], |
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max = state.eMarks[startLine], |
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nextLine = startLine + 1; |
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if (pos >= max) { return false; } |
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if (state.src.charCodeAt(pos) !== 0x5B/* [ */) { return false; } |
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endLine = state.lineMax; |
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// jump line-by-line until empty one or EOF
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if (nextLine < endLine && !state.isEmpty(nextLine)) { |
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terminatorRules = state.md.block.ruler.getRules('references'); |
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for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) { |
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// this would be a code block normally, but after paragraph
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// it's considered a lazy continuation regardless of what's there
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if (state.tShift[nextLine] - state.blkIndent > 3) { continue; } |
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// Some tags can terminate paragraph without empty line.
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terminate = false; |
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for (i = 0, l = terminatorRules.length; i < l; i++) { |
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if (terminatorRules[i](state, nextLine, endLine, true)) { |
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terminate = true; |
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break; |
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} |
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} |
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if (terminate) { break; } |
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} |
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} |
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str = state.getLines(startLine, nextLine, state.blkIndent, false).trim(); |
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max = str.length; |
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for (pos = 1; pos < max; pos++) { |
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ch = str.charCodeAt(pos); |
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if (ch === 0x5B /* [ */) { |
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return false; |
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} else if (ch === 0x5D /* ] */) { |
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labelEnd = pos; |
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break; |
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} else if (ch === 0x0A /* \n */) { |
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lines++; |
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} else if (ch === 0x5C /* \ */) { |
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pos++; |
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if (pos < max && str.charCodeAt(pos) === 0x0A) { |
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lines++; |
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} |
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} |
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} |
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if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return false; } |
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// [label]: destination 'title'
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// ^^^ skip optional whitespace here
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for (pos = labelEnd + 2; pos < max; pos++) { |
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ch = str.charCodeAt(pos); |
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if (ch === 0x0A) { |
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lines++; |
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} else if (ch === 0x20) { |
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/*eslint no-empty:0*/ |
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} else { |
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break; |
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} |
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} |
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// [label]: destination 'title'
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// ^^^^^^^^^^^ parse this
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res = parseLinkDestination(str, pos, max); |
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if (!res.ok) { return false; } |
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if (!state.md.inline.validateLink(res.str)) { return false; } |
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href = res.str; |
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pos = res.pos; |
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lines += res.lines; |
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// save cursor state, we could require to rollback later
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destEndPos = pos; |
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destEndLineNo = lines; |
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// [label]: destination 'title'
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// ^^^ skipping those spaces
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start = pos; |
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for (; pos < max; pos++) { |
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ch = str.charCodeAt(pos); |
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if (ch === 0x0A) { |
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lines++; |
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} else if (ch === 0x20) { |
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/*eslint no-empty:0*/ |
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} else { |
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break; |
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} |
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} |
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// [label]: destination 'title'
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// ^^^^^^^ parse this
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res = parseLinkTitle(str, pos, max); |
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if (pos < max && start !== pos && res.ok) { |
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title = res.str; |
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pos = res.pos; |
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lines += res.lines; |
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} else { |
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title = ''; |
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pos = destEndPos; |
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lines = destEndLineNo; |
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} |
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// skip trailing spaces until the rest of the line
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while (pos < max && str.charCodeAt(pos) === 0x20/* space */) { pos++; } |
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if (pos < max && str.charCodeAt(pos) !== 0x0A) { |
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// garbage at the end of the line
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return false; |
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} |
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if (silent) { return true; } |
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label = normalizeReference(str.slice(1, labelEnd)); |
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if (typeof state.env.references === 'undefined') { |
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state.env.references = {}; |
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} |
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if (typeof state.env.references[label] === 'undefined') { |
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state.env.references[label] = { title: title, href: href }; |
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} |
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state.line = startLine + lines + 1; |
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return true; |
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}; |
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@ -1,107 +0,0 @@ |
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'use strict'; |
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var parseLinkDestination = require('../helpers/parse_link_destination'); |
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var parseLinkTitle = require('../helpers/parse_link_title'); |
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var normalizeReference = require('../helpers/normalize_reference'); |
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function parseReference(str, md, env) { |
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var state, pos, code, start, href, title, label, ch, max, |
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labelEnd = -1; |
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if (str.charCodeAt(0) !== 0x5B/* [ */) { return -1; } |
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if (str.indexOf(']:') === -1) { return -1; } |
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state = new md.inline.State(str, md, env, []); |
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max = state.posMax; |
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for (pos = 1; pos < max; pos++) { |
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ch = str.charCodeAt(pos); |
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if (ch === 0x5B /* [ */) { |
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return -1; |
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} else if (ch === 0x5D /* ] */) { |
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labelEnd = pos; |
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break; |
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} else if (ch === 0x5C /* \ */) { |
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pos++; |
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} |
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} |
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if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; } |
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// [label]: destination 'title'
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// ^^^ skip optional whitespace here
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for (pos = labelEnd + 2; pos < max; pos++) { |
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code = state.src.charCodeAt(pos); |
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if (code !== 0x20 && code !== 0x0A) { break; } |
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} |
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// [label]: destination 'title'
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// ^^^^^^^^^^^ parse this
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if (!parseLinkDestination(state, pos)) { return -1; } |
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href = state.linkContent; |
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pos = state.pos; |
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// [label]: destination 'title'
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// ^^^ skipping those spaces
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start = pos; |
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for (pos = pos + 1; pos < max; pos++) { |
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code = state.src.charCodeAt(pos); |
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if (code !== 0x20 && code !== 0x0A) { break; } |
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} |
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// [label]: destination 'title'
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// ^^^^^^^ parse this
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if (pos < max && start !== pos && parseLinkTitle(state, pos)) { |
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title = state.linkContent; |
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pos = state.pos; |
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} else { |
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title = ''; |
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pos = start; |
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} |
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// ensure that the end of the line is empty
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while (pos < max && state.src.charCodeAt(pos) === 0x20/* space */) { pos++; } |
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if (pos < max && state.src.charCodeAt(pos) !== 0x0A) { return -1; } |
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label = normalizeReference(str.slice(1, labelEnd)); |
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if (typeof env.references[label] === 'undefined') { |
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env.references[label] = { title: title, href: href }; |
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} |
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return pos; |
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} |
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module.exports = function references(state) { |
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var tokens = state.tokens, i, l, content, pos; |
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state.env.references = state.env.references || {}; |
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if (state.inlineMode) { |
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return; |
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} |
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// Scan definitions in paragraph inlines
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for (i = 1, l = tokens.length - 1; i < l; i++) { |
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if (tokens[i].type === 'inline' && |
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tokens[i - 1].type === 'paragraph_open' && |
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tokens[i + 1].type === 'paragraph_close') { |
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content = tokens[i].content; |
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while (content.length) { |
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pos = parseReference(content, state.md, state.env); |
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if (pos < 0) { break; } |
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content = content.slice(pos).trim(); |
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} |
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tokens[i].content = content; |
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if (!content.length) { |
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tokens[i - 1].tight = true; |
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tokens[i + 1].tight = true; |
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} |
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} |
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} |
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}; |
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