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authorLibravatar Titus Wormer <tituswormer@gmail.com>2022-08-15 11:40:40 +0200
committerLibravatar Titus Wormer <tituswormer@gmail.com>2022-08-15 11:40:40 +0200
commitee967aa634b5f8e9d30329d587538f1371a5da95 (patch)
treecdc1461c822e440b24428eb8d431881e216ab8bd /src/content/flow.rs
parent13135666fac476f3cd6f059147f496533b304097 (diff)
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Refactor to move `content` to `construct`
Diffstat (limited to 'src/content/flow.rs')
-rw-r--r--src/content/flow.rs254
1 files changed, 0 insertions, 254 deletions
diff --git a/src/content/flow.rs b/src/content/flow.rs
deleted file mode 100644
index 08c7891..0000000
--- a/src/content/flow.rs
+++ /dev/null
@@ -1,254 +0,0 @@
-//! The flow content type.
-//!
-//! **Flow** represents the sections, such as headings and code, which are
-//! parsed per line.
-//! An example is HTML, which has a certain starting condition (such as
-//! `<script>` on its own line), then continues for a while, until an end
-//! condition is found (such as `</style>`).
-//! If that line with an end condition is never found, that flow goes until
-//! the end.
-//!
-//! The constructs found in flow are:
-//!
-//! * [Blank line][crate::construct::blank_line]
-//! * [Code (fenced)][crate::construct::code_fenced]
-//! * [Code (indented)][crate::construct::code_indented]
-//! * [Definition][crate::construct::definition]
-//! * [Heading (atx)][crate::construct::heading_atx]
-//! * [Heading (setext)][crate::construct::heading_setext]
-//! * [HTML (flow)][crate::construct::html_flow]
-//! * [Thematic break][crate::construct::thematic_break]
-
-use crate::event::Name;
-use crate::state::{Name as StateName, State};
-use crate::tokenizer::Tokenizer;
-
-/// Start of flow.
-//
-/// ```markdown
-/// > | ## alpha
-/// ^
-/// > | bravo
-/// ^
-/// > | ***
-/// ^
-/// ```
-pub fn start(tokenizer: &mut Tokenizer) -> State {
- match tokenizer.current {
- Some(b'`' | b'~') => {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeParagraph),
- );
- State::Retry(StateName::CodeFencedStart)
- }
- Some(b'<') => {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeParagraph),
- );
- State::Retry(StateName::HtmlFlowStart)
- }
- Some(b'#') => {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeParagraph),
- );
- State::Retry(StateName::HeadingAtxStart)
- }
- // Note: `-` is also used in thematic breaks, so it’s not included here.
- Some(b'=') => {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeParagraph),
- );
- State::Retry(StateName::HeadingSetextStart)
- }
- Some(b'*' | b'_') => {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeParagraph),
- );
- State::Retry(StateName::ThematicBreakStart)
- }
- Some(b'[') => {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeParagraph),
- );
- State::Retry(StateName::DefinitionStart)
- }
- // Actual parsing: blank line? Indented code? Indented anything?
- // Also includes `-` which can be a setext heading underline or a thematic break.
- None | Some(b'\t' | b'\n' | b' ' | b'-') => State::Retry(StateName::FlowBlankLineBefore),
- // Must be a paragraph.
- Some(_) => {
- tokenizer.attempt(State::Next(StateName::FlowAfter), State::Nok);
- State::Retry(StateName::ParagraphStart)
- }
- }
-}
-
-/// At blank line.
-///
-/// ```markdown
-/// > | ␠␠␊
-/// ^
-/// ```
-pub fn blank_line_before(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(
- State::Next(StateName::FlowBlankLineAfter),
- State::Next(StateName::FlowBeforeCodeIndented),
- );
- State::Retry(StateName::BlankLineStart)
-}
-
-/// At code (indented).
-///
-/// ```markdown
-/// > | ␠␠␠␠a
-/// ^
-/// ```
-pub fn before_code_indented(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeCodeFenced),
- );
- State::Retry(StateName::CodeIndentedStart)
-}
-
-/// At code (fenced).
-///
-/// ````markdown
-/// > | ```
-/// ^
-/// ````
-pub fn before_code_fenced(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeHtml),
- );
- State::Retry(StateName::CodeFencedStart)
-}
-
-/// At html (flow).
-///
-/// ```markdown
-/// > | <a>
-/// ^
-/// ```
-pub fn before_html(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeHeadingAtx),
- );
- State::Retry(StateName::HtmlFlowStart)
-}
-
-/// At heading (atx).
-///
-/// ```markdown
-/// > | # a
-/// ^
-/// ```
-pub fn before_heading_atx(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeHeadingSetext),
- );
- State::Retry(StateName::HeadingAtxStart)
-}
-
-/// At heading (setext).
-///
-/// ```markdown
-/// | a
-/// > | =
-/// ^
-/// ```
-pub fn before_heading_setext(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeThematicBreak),
- );
- State::Retry(StateName::HeadingSetextStart)
-}
-
-/// At thematic break.
-///
-/// ```markdown
-/// > | ***
-/// ^
-/// ```
-pub fn before_thematic_break(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeDefinition),
- );
- State::Retry(StateName::ThematicBreakStart)
-}
-
-/// At definition.
-///
-/// ```markdown
-/// > | [a]: b
-/// ^
-/// ```
-pub fn before_definition(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(
- State::Next(StateName::FlowAfter),
- State::Next(StateName::FlowBeforeParagraph),
- );
- State::Retry(StateName::DefinitionStart)
-}
-
-/// At paragraph.
-///
-/// ```markdown
-/// > | a
-/// ^
-/// ```
-pub fn before_paragraph(tokenizer: &mut Tokenizer) -> State {
- tokenizer.attempt(State::Next(StateName::FlowAfter), State::Nok);
- State::Retry(StateName::ParagraphStart)
-}
-
-/// After blank line.
-///
-/// ```markdown
-/// > | ␠␠␊
-/// ^
-/// ```
-pub fn blank_line_after(tokenizer: &mut Tokenizer) -> State {
- match tokenizer.current {
- None => State::Ok,
- Some(b'\n') => {
- tokenizer.enter(Name::BlankLineEnding);
- tokenizer.consume();
- tokenizer.exit(Name::BlankLineEnding);
- // Feel free to interrupt.
- tokenizer.interrupt = false;
- State::Next(StateName::FlowStart)
- }
- _ => unreachable!("expected eol/eof"),
- }
-}
-
-/// After flow.
-///
-/// ```markdown
-/// > | # a␊
-/// ^
-/// ```
-pub fn after(tokenizer: &mut Tokenizer) -> State {
- match tokenizer.current {
- None => State::Ok,
- Some(b'\n') => {
- tokenizer.enter(Name::LineEnding);
- tokenizer.consume();
- tokenizer.exit(Name::LineEnding);
- State::Next(StateName::FlowStart)
- }
- _ => unreachable!("expected eol/eof"),
- }
-}