diff options
Diffstat (limited to 'parser.go')
| -rw-r--r-- | parser.go | 62 |
1 files changed, 62 insertions, 0 deletions
@@ -40,6 +40,7 @@ const ( elKindInlineID // "[[" REF_ID "]]" TEXT elKindInlineIDShort // "[#" REF_ID "]#" TEXT "#" elKindInlineImage // Inline macro for "image:" + elKindInlinePass // Inline macro for passthrough "pass:" elKindInlineParagraph // elKindListOrdered // Wrapper. elKindListOrderedItem // 30: Line start with ". " @@ -637,6 +638,67 @@ func parseAttrRef(doc *Document, content []byte, x int) (newContent []byte, ok b return newContent, true } +// parseClosedBracket parse the text in input until we found the last close +// bracket. +// It will skip any open-close brackets inside input. +// For example, parsing ("test:[]]", '[', ']') will return ("test:[]", 7). +// +// If no closed bracket found it will return (nil, -1). +func parseClosedBracket(input []byte, openb, closedb byte) (out []byte, idx int) { + var ( + openCount int + c byte + isEsc bool + ) + + out = make([]byte, 0, len(input)) + + for idx, c = range input { + if c == '\\' { + if isEsc { + out = append(out, '\\') + isEsc = false + } else { + isEsc = true + } + continue + } + + if c == closedb { + if isEsc { + out = append(out, c) + isEsc = false + continue + } + if openCount == 0 { + return out, idx + } + openCount-- + out = append(out, c) + continue + } + + if c == openb { + out = append(out, c) + if isEsc { + isEsc = false + } else { + openCount++ + } + continue + } + + if isEsc { + out = append(out, '\\') + isEsc = false + } + out = append(out, c) + } + + // No closed bracket found. + return nil, -1 +} + // parseIDLabel parse the string "ID (,LABEL)" into ID and label. // It will return empty id and label if ID is not valid. func parseIDLabel(s []byte) (id, label []byte) { |