markdown-it-citations/dist/index.js

pandoc compatible citations for markdown-it

const Citations = (md, options) => {
  const regexes = {
    citation: /^([^^-]|[^^].+?)?(-)?@([\w][\w:.#$%&\-+?<>~\/]*)(.+)?$/,
    inText: /^@([\w][\w:.#$%&\-+?<>~\/]*)(\s*)(\[)?/,
    allowedBefore: /^[^a-zA-Z.0-9]$/
  };
  md.inline.ruler.after("emphasis", "citation", (state, silent) => {
    let max = state.posMax;
    const char = state.src.charCodeAt(state.pos);
    if (char == 64 && (state.pos == 0 || regexes.allowedBefore.test(state.src.slice(state.pos - 1, state.pos)))) {
      const match = state.src.slice(state.pos).match(regexes.inText);
      if (match) {
        const citeproc = options?.citeproc ? state.env.citeproc || (state.env.citeproc = options?.citeproc(state.env)) : void 0;
        let citation = {
          citationId: match[1],
          citationPrefix: [],
          citationSuffix: [],
          citationMode: "AuthorInText",
          citationNoteNum: state.env.noteNum = (state.env.noteNum || 0) + 1,
          citationHash: 0
        };
        let token;
        if (!silent) {
          token = state.push("cite_open", "span", 1);
          token.attrSet("class", "citation");
          token.attrSet("data-cites", match[1]);
        }
        if (match[3]) {
          const suffixStart = state.pos + match[0].length;
          const suffixEnd = state.md.helpers.parseLinkLabel(state, suffixStart);
          const charAfter = state.src.codePointAt(suffixEnd + 1);
          if (suffixEnd > 0 && charAfter != 40 && charAfter != 91) {
            const suffix = state.src.slice(suffixStart, suffixEnd);
            citation.citationSuffix = state.md.parseInline(suffix, state.env);
            state.pending += match[0] + suffix + "]";
            state.pos += match[0].length + suffixEnd - suffixStart + 1;
          } else {
            state.pending += "@" + match[1];
            state.pos += match[0].length - match[2].length - match[3].length;
          }
        } else {
          state.pos += match[0].length - match[2].length;
        }
        if (token) {
          token.meta = citeproc?.appendCluster([citation]);
          state.pushPending();
          state.push("cite_close", "span", -1);
        }
        return true;
      }
    } else if (char == 91) {
      const end = state.md.helpers.parseLinkLabel(state, state.pos);
      const charAfter = state.src.codePointAt(end + 1);
      if (end > 0 && charAfter != 40 && charAfter != 91) {
        const str = state.src.slice(state.pos + 1, end);
        const parts = str.split(";").map((x) => x.match(regexes.citation));
        if (parts.indexOf(null) >= 0) {
          return false;
        } else {
          const citeproc = options?.citeproc ? state.env.citeproc || (state.env.citeproc = options?.citeproc(state.env)) : void 0;
          const cites = parts.map((x) => ({
            citationId: x[3],
            citationPrefix: x[1] ? state.md.parseInline(x[1], state.env) : [],
            citationSuffix: x[4] ? state.md.parseInline(x[4], state.env) : [],
            citationMode: x[2] ? "SuppressAuthor" : "NormalCitation",
            citationNoteNum: state.env.noteNum = (state.env.noteNum || 0) + 1,
            citationHash: 0
          }));
          if (!silent) {
            const token = state.push("cite_open", "span", 1);
            token.meta = citeproc?.appendCluster(cites);
            token.attrSet("class", "citation");
            token.attrSet("data-cites", cites.map((x) => x.citationId).join(" "));
            state.pending = state.src.slice(state.pos, end + 1);
            state.push("cite_close", "span", -1);
          }
          state.pos = end + 1;
          return true;
        }
      }
      return false;
    }
    return false;
  });
  if (options?.citeproc) {
    md.renderer.rules["cite_open"] = (tkns, idx, opts, env, slf) => {
      const citeproc = env.citeproc || options.citeproc(env);
      tkns[idx + 1].content = "";
      return citeproc.renderCluster(tkns[idx].meta, slf);
    };
    md.renderer.rules["cite_close"] = () => "";
    if (!options?.["suppress-bibliography"]) {
      md.core.ruler.push("bibliography", (state) => {
        if (!state.inlineMode) {
          const i = state.tokens.findIndex((tk) => tk.attrGet("id") == "refs");
          if (i >= 0) {
            const refsOpen = state.tokens[i];
            if (refsOpen.nesting != 1) {
              return false;
            }
            let j = i + 1;
            while (j < state.tokens.length) {
              if (state.tokens[j].tag == refsOpen.tag && state.tokens[j].level == refsOpen.level && state.tokens[j].nesting == -1) {
                state.tokens.splice(j, 0, new state.Token("bibliography", "", 0));
                return true;
              }
              j += 1;
            }
            return false;
          } else {
            const refsOpen = new state.Token("refs_container", "div", 1);
            refsOpen.attrSet("id", "refs");
            state.tokens.push(refsOpen);
            state.tokens.push(new state.Token("bibliography", "", 0));
            state.tokens.push(new state.Token("refs_container", "div", -1));
            return true;
          }
        } else
          return false;
      });
      md.renderer.rules["bibliography"] = (tks, idx, opts, env) => {
        const citeproc = options?.citeproc ? env.citeproc || (env.citeproc = options?.citeproc(env)) : void 0;
        return citeproc?.renderBibliography() || "<NO CITEPROC CONFIGURED>";
      };
    }
  }
};
var src_default = Citations;
export {
  src_default as default
};