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@ -1,27 +1,28 @@
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use super::charstate::CharStateMachine;
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use super::elements::*;
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use super::parser::ParseError;
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use super::tokens::*;
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use crate::parsing::utils::{ParseError, ParseResult};
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use crate::Parser;
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pub(crate) trait ParseInline {
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fn parse_inline(&mut self) -> Result<Inline, ParseError>;
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fn parse_image(&mut self) -> Result<Image, ParseError>;
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fn parse_url(&mut self, short_syntax: bool) -> Result<Url, ParseError>;
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fn parse_checkbox(&mut self) -> Result<Checkbox, ParseError>;
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fn parse_bold(&mut self) -> Result<BoldText, ParseError>;
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fn parse_italic(&mut self) -> Result<ItalicText, ParseError>;
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fn parse_striked(&mut self) -> Result<StrikedText, ParseError>;
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fn parse_monospace(&mut self) -> Result<MonospaceText, ParseError>;
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fn parse_underlined(&mut self) -> Result<UnderlinedText, ParseError>;
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fn parse_superscript(&mut self) -> Result<SuperscriptText, ParseError>;
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fn parse_plain(&mut self) -> Result<PlainText, ParseError>;
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fn parse_surrounded(&mut self, surrounding: &char) -> Result<Inline, ParseError>;
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fn parse_surrounded(&mut self, surrounding: &char) -> ParseResult<Inline>;
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fn parse_inline(&mut self) -> ParseResult<Inline>;
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fn parse_image(&mut self) -> ParseResult<Image>;
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fn parse_url(&mut self, short_syntax: bool) -> ParseResult<Url>;
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fn parse_checkbox(&mut self) -> ParseResult<Checkbox>;
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fn parse_bold(&mut self) -> ParseResult<BoldText>;
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fn parse_italic(&mut self) -> ParseResult<ItalicText>;
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fn parse_striked(&mut self) -> ParseResult<StrikedText>;
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fn parse_monospace(&mut self) -> ParseResult<MonospaceText>;
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fn parse_underlined(&mut self) -> ParseResult<UnderlinedText>;
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fn parse_superscript(&mut self) -> ParseResult<SuperscriptText>;
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fn parse_emoji(&mut self) -> ParseResult<Emoji>;
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fn parse_plain(&mut self) -> ParseResult<PlainText>;
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}
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impl ParseInline for Parser {
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/// parses Inline, the formatting parts of a line (Text)
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fn parse_inline(&mut self) -> Result<Inline, ParseError> {
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fn parse_inline(&mut self) -> ParseResult<Inline> {
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if self.check_special(&PIPE) || self.check_linebreak() {
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Err(ParseError::new(self.index))
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} else if let Ok(image) = self.parse_image() {
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@ -44,13 +45,15 @@ impl ParseInline for Parser {
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Ok(Inline::Superscript(superscript))
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} else if let Ok(checkbox) = self.parse_checkbox() {
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Ok(Inline::Checkbox(checkbox))
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} else if let Ok(emoji) = self.parse_emoji() {
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Ok(Inline::Emoji(emoji))
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} else {
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Ok(Inline::Plain(self.parse_plain()?))
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}
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}
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/// parses an image url
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fn parse_image(&mut self) -> Result<Image, ParseError> {
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fn parse_image(&mut self) -> ParseResult<Image> {
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let start_index = self.index;
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self.seek_inline_whitespace();
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self.assert_special(&IMG_START, start_index)?;
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@ -69,7 +72,7 @@ impl ParseInline for Parser {
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}
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// parses an url
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fn parse_url(&mut self, short_syntax: bool) -> Result<Url, ParseError> {
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fn parse_url(&mut self, short_syntax: bool) -> ParseResult<Url> {
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let start_index = self.index;
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self.seek_inline_whitespace();
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@ -104,7 +107,7 @@ impl ParseInline for Parser {
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}
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/// parses a markdown checkbox
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fn parse_checkbox(&mut self) -> Result<Checkbox, ParseError> {
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fn parse_checkbox(&mut self) -> ParseResult<Checkbox> {
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let start_index = self.index;
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self.assert_special(&CHECK_OPEN, start_index)?;
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self.skip_char();
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@ -123,7 +126,7 @@ impl ParseInline for Parser {
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}
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/// parses bold text with must start with two asterisks
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fn parse_bold(&mut self) -> Result<BoldText, ParseError> {
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fn parse_bold(&mut self) -> ParseResult<BoldText> {
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let start_index = self.index;
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self.assert_special_sequence(&BOLD, start_index)?;
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self.skip_char();
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@ -136,20 +139,20 @@ impl ParseInline for Parser {
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})
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}
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fn parse_italic(&mut self) -> Result<ItalicText, ParseError> {
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fn parse_italic(&mut self) -> ParseResult<ItalicText> {
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Ok(ItalicText {
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value: Box::new(self.parse_surrounded(&ITALIC)?),
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})
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}
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fn parse_striked(&mut self) -> Result<StrikedText, ParseError> {
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fn parse_striked(&mut self) -> ParseResult<StrikedText> {
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Ok(StrikedText {
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value: Box::new(self.parse_surrounded(&STRIKED)?),
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})
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}
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/// parses monospace text (inline-code) that isn't allowed to contain special characters
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fn parse_monospace(&mut self) -> Result<MonospaceText, ParseError> {
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fn parse_monospace(&mut self) -> ParseResult<MonospaceText> {
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let start_index = self.index;
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self.assert_special(&BACKTICK, start_index)?;
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self.skip_char();
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@ -160,20 +163,20 @@ impl ParseInline for Parser {
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Ok(MonospaceText { value: content })
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}
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fn parse_underlined(&mut self) -> Result<UnderlinedText, ParseError> {
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fn parse_underlined(&mut self) -> ParseResult<UnderlinedText> {
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Ok(UnderlinedText {
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value: Box::new(self.parse_surrounded(&UNDERLINED)?),
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})
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}
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fn parse_superscript(&mut self) -> Result<SuperscriptText, ParseError> {
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fn parse_superscript(&mut self) -> ParseResult<SuperscriptText> {
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Ok(SuperscriptText {
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value: Box::new(self.parse_surrounded(&SUPER)?),
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})
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}
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/// parses plain text as a string until it encounters an unescaped special inline char
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fn parse_plain(&mut self) -> Result<PlainText, ParseError> {
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fn parse_plain(&mut self) -> ParseResult<PlainText> {
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if self.check_linebreak() {
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return Err(ParseError::new(self.index));
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}
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@ -196,7 +199,7 @@ impl ParseInline for Parser {
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}
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/// parses Inline surrounded by characters
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fn parse_surrounded(&mut self, surrounding: &char) -> Result<Inline, ParseError> {
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fn parse_surrounded(&mut self, surrounding: &char) -> ParseResult<Inline> {
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let start_index = self.index;
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self.assert_special(surrounding, start_index)?;
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self.skip_char();
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@ -206,4 +209,21 @@ impl ParseInline for Parser {
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Ok(inline)
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}
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fn parse_emoji(&mut self) -> ParseResult<Emoji> {
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let start_index = self.index;
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self.assert_special(&EMOJI, start_index)?;
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self.skip_char();
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let name = self.get_string_until_or_revert(&[EMOJI], &[], start_index)?;
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self.skip_char();
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if let Some(emoji) = gh_emoji::get(name.as_str()) {
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let emoji_char = *emoji.chars().collect::<Vec<char>>().first().unwrap();
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Ok(Emoji {
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value: emoji_char,
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name,
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})
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} else {
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Err(self.revert_with_error(start_index))
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}
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}
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}
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trivernis
4 years ago