utils/parse-article-content.sh


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#!/bin/bash

# Skip file metadata, first 3 lines

sanitize-html-entities () {
  echo "$1" |
  sed 's/</\&lt;/g' |
  sed 's/>/\&gt;/g'
}

parse-article-content-file () {
  local PRE_TAG=
  local IGNORE_NEXT_PRE_TAG=
  local INSIDE_PRE_TAG=
  local CONTENT
  local TLINE=

  while IFS= read -r line; do
    TLINE="$line"

    if [ -z "$INSIDE_PRE_TAG" ]; then
      echo "$line" | grep '<pre role="code"' > /dev/null
      if [ $? -eq 0 ]; then
        PRE_TAG=$line
        INSIDE_PRE_TAG=1
        TLINE="$line <!-- code-start -->"
      fi
    else
      echo "$line" | grep '<pre' > /dev/null
      if [ "$?" -eq 0 ]; then
        IGNORE_NEXT_PRE_TAG=1
        TLINE="<code>$(sanitize-html-entities "$line")</code>"
      fi

      echo "$line" | grep '</pre>' > /dev/null
      if [ $? -eq 0 ]; then
        if [ -n "$IGNORE_NEXT_PRE_TAG" ]; then
          IGNORE_NEXT_PRE_TAG=""
          TLINE="<code>$(sanitize-html-entities "$line")</code>"
        else
          INSIDE_PRE_TAG=""
          PRE_TAG=""
          TLINE="$line<!-- code-end -->"
        fi
      else
        TLINE="<code>$(sanitize-html-entities "$line")</code>"
      fi

    fi

    CONTENT="${CONTENT}
$TLINE"
  done <<< $(echo "$ARTICLE_FILE_CONTENT" | tail -n +3)

  echo "$CONTENT"
}

if [ "$DO_NOT_PROCESS_HTML" = "true" ]; then
  ARTICLE_CONTENT=$(echo "$ARTICLE_FILE_CONTENT" | tail -n +3)
else
  ARTICLE_CONTENT=$(parse-article-content-file)
fi