From d607ac12097afb5cb6f398a4e7b5cf4316efedc6 Mon Sep 17 00:00:00 2001 From: altaf-creator Date: Sun, 12 May 2024 12:14:02 +0700 Subject: self host --- packages/markdown-it-14.1.0/lib/parser_block.mjs | 134 +++++++++++++++++++++++ 1 file changed, 134 insertions(+) create mode 100644 packages/markdown-it-14.1.0/lib/parser_block.mjs (limited to 'packages/markdown-it-14.1.0/lib/parser_block.mjs') diff --git a/packages/markdown-it-14.1.0/lib/parser_block.mjs b/packages/markdown-it-14.1.0/lib/parser_block.mjs new file mode 100644 index 0000000..486d68f --- /dev/null +++ b/packages/markdown-it-14.1.0/lib/parser_block.mjs @@ -0,0 +1,134 @@ +/** internal + * class ParserBlock + * + * Block-level tokenizer. + **/ + +import Ruler from './ruler.mjs' +import StateBlock from './rules_block/state_block.mjs' + +import r_table from './rules_block/table.mjs' +import r_code from './rules_block/code.mjs' +import r_fence from './rules_block/fence.mjs' +import r_blockquote from './rules_block/blockquote.mjs' +import r_hr from './rules_block/hr.mjs' +import r_list from './rules_block/list.mjs' +import r_reference from './rules_block/reference.mjs' +import r_html_block from './rules_block/html_block.mjs' +import r_heading from './rules_block/heading.mjs' +import r_lheading from './rules_block/lheading.mjs' +import r_paragraph from './rules_block/paragraph.mjs' + +const _rules = [ + // First 2 params - rule name & source. Secondary array - list of rules, + // which can be terminated by this one. + ['table', r_table, ['paragraph', 'reference']], + ['code', r_code], + ['fence', r_fence, ['paragraph', 'reference', 'blockquote', 'list']], + ['blockquote', r_blockquote, ['paragraph', 'reference', 'blockquote', 'list']], + ['hr', r_hr, ['paragraph', 'reference', 'blockquote', 'list']], + ['list', r_list, ['paragraph', 'reference', 'blockquote']], + ['reference', r_reference], + ['html_block', r_html_block, ['paragraph', 'reference', 'blockquote']], + ['heading', r_heading, ['paragraph', 'reference', 'blockquote']], + ['lheading', r_lheading], + ['paragraph', r_paragraph] +] + +/** + * new ParserBlock() + **/ +function ParserBlock () { + /** + * ParserBlock#ruler -> Ruler + * + * [[Ruler]] instance. Keep configuration of block rules. + **/ + this.ruler = new Ruler() + + for (let i = 0; i < _rules.length; i++) { + this.ruler.push(_rules[i][0], _rules[i][1], { alt: (_rules[i][2] || []).slice() }) + } +} + +// Generate tokens for input range +// +ParserBlock.prototype.tokenize = function (state, startLine, endLine) { + const rules = this.ruler.getRules('') + const len = rules.length + const maxNesting = state.md.options.maxNesting + let line = startLine + let hasEmptyLines = false + + while (line < endLine) { + state.line = line = state.skipEmptyLines(line) + if (line >= endLine) { break } + + // Termination condition for nested calls. + // Nested calls currently used for blockquotes & lists + if (state.sCount[line] < state.blkIndent) { break } + + // If nesting level exceeded - skip tail to the end. That's not ordinary + // situation and we should not care about content. + if (state.level >= maxNesting) { + state.line = endLine + break + } + + // Try all possible rules. + // On success, rule should: + // + // - update `state.line` + // - update `state.tokens` + // - return true + const prevLine = state.line + let ok = false + + for (let i = 0; i < len; i++) { + ok = rules[i](state, line, endLine, false) + if (ok) { + if (prevLine >= state.line) { + throw new Error("block rule didn't increment state.line") + } + break + } + } + + // this can only happen if user disables paragraph rule + if (!ok) throw new Error('none of the block rules matched') + + // set state.tight if we had an empty line before current tag + // i.e. latest empty line should not count + state.tight = !hasEmptyLines + + // paragraph might "eat" one newline after it in nested lists + if (state.isEmpty(state.line - 1)) { + hasEmptyLines = true + } + + line = state.line + + if (line < endLine && state.isEmpty(line)) { + hasEmptyLines = true + line++ + state.line = line + } + } +} + +/** + * ParserBlock.parse(str, md, env, outTokens) + * + * Process input string and push block tokens into `outTokens` + **/ +ParserBlock.prototype.parse = function (src, md, env, outTokens) { + if (!src) { return } + + const state = new this.State(src, md, env, outTokens) + + this.tokenize(state, state.line, state.lineMax) +} + +ParserBlock.prototype.State = StateBlock + +export default ParserBlock -- cgit v1.2.3