Basic headline

src/org/org_block_heading.nim

@@ -40,19 +40,38 @@ let parseHeadingText = @[
 #   token
 
 let buildStars = func(tokens: seq[ParserToken], org: OrgBlock): OrgBlock {.closure.}=
-  org.level = tokens[0].tokenStringValue().len
+  org.level = tokens.len
+  org
+
+let buildTodo = func(tokens: seq[ParserToken], org: OrgBlock): OrgBlock {.closure.}=
+  org.todo = tokens.tokensToString().some()
+  org
+
+let buildHeadlineContent = func(tokens: seq[ParserToken], org: OrgBlock): OrgBlock {.closure.}=
+  org.headlineContent = tokens.tokensToString()
   org
 
 proc tryBuildHeading(builder: OrgBuilderResult): OrgBuilderResult =
   builder
   .applyParsersSeqToSingle(
     OrgBlock(kind: orgHeading),
-    @[(parseHeadingStars, buildStars)]
+    @[
+      (parseHeadingStars, buildStars, false),
+
+      (@[optional(parseTodoKeyword)], buildTodo, true),
+      (@[optional(parseDoneKeyword)], buildTodo, true),
+
+      (parseHeadingText, buildHeadlineContent, false),
+    ]
   )
 
 when isMainModule:
-  echo initOrgBuilder("**** TODO Some stars")
+  echo initOrgBuilder("*** Some stars")
   .tryBuildHeading()
+  .fold(
+    x => "Nothing",
+    x => $x.tree
+  )
 
 
 #   let sampleBuilder = StringBuilderResult

src/org/org_types.nim

@@ -1,3 +1,4 @@
+import std/options
 import std/strformat
 import std/sugar
 import std/strutils
@@ -89,11 +90,15 @@ type
     case kind*: orgBlockKind
     of orgHeading:
       level*: int
+      todo*: Option[string]
+      headlineContent*: string
 
 func stringifySpecialFields(x: OrgBlock): string =
   let specialFields = case x.kind:
     of orgHeading:
-       &"""level: {x.level}"""
+       &"""level: {x.level}
+todo: {x.todo}
+headlineContent: {x.headlineContent}"""
     else: ""
 
   specialFields

src/parser/parser_types.nim

@@ -166,6 +166,7 @@ proc applyParsersToSingle*[T](
   builder: Builder[T],
   parsers: seq[Parser -> ParserResult],
   tokenFoldFn: (seq[ParserToken], T) -> T,
+  optional = false,
   initT: T,
 ): BuilderResult[T] =
   # Apply the current parsing functions and convert to text tokens wrapped in ParserResult
@@ -178,7 +179,11 @@ proc applyParsersToSingle*[T](
   newParser
   .foldTokens(
     (err: ParserError) => BuilderResult[T].err((builder, "foo")),
-    (newTokens: seq[ParserToken]) => BuilderResult[T].ok(
+    (newTokens: seq[ParserToken]) => (
+      if optional and newTokens.len == 0:
+        BuilderResult[T].ok(builder)
+      else:
+        BuilderResult[T].ok(
           builder.initBuilder(
             newParser.unsafeGet(),
             builder.tree
@@ -189,6 +194,7 @@ proc applyParsersToSingle*[T](
           )
         )
     )
+  )
 
 proc applyParsersSeqToSingle*[T](
   builderResult: BuilderResult[T],
@@ -196,10 +202,17 @@ proc applyParsersSeqToSingle*[T](
   xs: seq[tuple[
     parsers: seq[Parser -> ParserResult],
     tokenFoldFn: (seq[ParserToken], T) -> T,
+    ignoreEmpty: bool,
   ]],
 ): BuilderResult[T] =
     xs.foldl(
-      a.flatMap((builder: Builder[T]) => applyParsersToSingle(builder, b[0], b[1], initT)),
+      a.flatMap((builder: Builder[T]) => applyParsersToSingle(
+        builder,
+        b.parsers,
+        b.tokenFoldFn,
+        b.ignoreEmpty,
+        initT
+      )),
       builderResult
     )