summaryrefslogtreecommitdiff
path: root/grammar/src/test_grammar_helper.rs
diff options
context:
space:
mode:
Diffstat (limited to 'grammar/src/test_grammar_helper.rs')
-rw-r--r--grammar/src/test_grammar_helper.rs128
1 files changed, 126 insertions, 2 deletions
diff --git a/grammar/src/test_grammar_helper.rs b/grammar/src/test_grammar_helper.rs
index 89f9844..984eb50 100644
--- a/grammar/src/test_grammar_helper.rs
+++ b/grammar/src/test_grammar_helper.rs
@@ -45,7 +45,7 @@ fn scan_tnt(
'T' => {
let mut name = String::new();
- while let Some(c) = chars.next() {
+ for c in chars.by_ref() {
if ('a'..='z').contains(&c) || ('A'..='Z').contains(&c) {
len += 1;
write!(name, "{c}").map_err(|_| ParseError::InvalidCharacter(c))?;
@@ -63,7 +63,7 @@ fn scan_tnt(
'N' => {
let mut name = String::new();
- while let Some(c) = chars.next() {
+ for c in chars.by_ref() {
if ('a'..='z').contains(&c) || ('A'..='Z').contains(&c) {
len += 1;
write!(name, "{c}").map_err(|_| ParseError::InvalidCharacter(c))?;
@@ -125,6 +125,130 @@ pub fn new_grammar() -> Result<Grammar, Box<dyn std::error::Error>> {
}
/// Return a grammar that might serve as the grammar for my notes,
+/// somehow, without regular expressions.
+#[allow(dead_code)]
+pub fn new_notes_grammar_no_regexp() -> Result<Grammar, Box<dyn std::error::Error>> {
+ let ter = vec![
+ Terminal::new("NL".to_owned()),
+ Terminal::new("SP".to_owned()),
+ Terminal::new("CON".to_owned()),
+ Terminal::new("STAR".to_owned()),
+ Terminal::new("NOTE".to_owned()),
+ Terminal::new("PRICE".to_owned()),
+ Terminal::new("DIGIT".to_owned()),
+ ];
+ let non = vec![
+ Nonterminal("document".to_owned()),
+ Nonterminal("item".to_owned()),
+ Nonterminal("header".to_owned()),
+ Nonterminal("title".to_owned()),
+ Nonterminal("note".to_owned()),
+ Nonterminal("note-content".to_owned()),
+ Nonterminal("price".to_owned()),
+ Nonterminal("ending".to_owned()),
+ Nonterminal("digits".to_owned()),
+ ];
+
+ let mut regex_parser: DefaultRegParser<TNT> = Default::default();
+
+ regex_parser.add_tnt("NL", true);
+ regex_parser.add_tnt("SP", true);
+ regex_parser.add_tnt("CON", true);
+ regex_parser.add_tnt("STAR", true);
+ regex_parser.add_tnt("note", true);
+ regex_parser.add_tnt("price", true);
+ regex_parser.add_tnt("DIGIT", true);
+ regex_parser.add_tnt("document", false);
+ regex_parser.add_tnt("item", false);
+ regex_parser.add_tnt("header", false);
+ regex_parser.add_tnt("title", false);
+ regex_parser.add_tnt("note", false);
+ regex_parser.add_tnt("notecontent", false);
+ regex_parser.add_tnt("price", false);
+ regex_parser.add_tnt("ending", false);
+ regex_parser.add_tnt("digits", false);
+
+ let regex_parser = regex_parser;
+
+ let rule1 = Rule {
+ regex: regex_parser
+ .parse("Nitem | Nitem Ndocument", Box::new(scan_tnt), true)?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rule2 = Rule {
+ regex: regex_parser
+ .parse(
+ "Nheader | Nheader Nprice | Nheader Nnote | Nheader Nprice Nnote",
+ Box::new(scan_tnt),
+ true,
+ )?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rule3 = Rule {
+ regex: regex_parser
+ .parse(
+ "TSP Ntitle TNL Nending | TSTAR TSP Ntitle TNL Nending",
+ Box::new(scan_tnt),
+ true,
+ )?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rule4 = Rule {
+ regex: regex_parser
+ .parse("TCON | TCON Ntitle", Box::new(scan_tnt), true)?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rule5 = Rule {
+ regex: regex_parser
+ .parse("Tnote Nnotecontent TNL Nending", Box::new(scan_tnt), true)?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rule6 = Rule {
+ regex: regex_parser
+ .parse("TCON | TCON Nnotecontent", Box::new(scan_tnt), true)?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rule7 = Rule {
+ regex: regex_parser
+ .parse("Tprice TSP Ndigits TNL Nending", Box::new(scan_tnt), true)?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rule8 = Rule {
+ regex: regex_parser
+ .parse("TNL Nending | TSP Nending | ()", Box::new(scan_tnt), true)?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rule9 = Rule {
+ regex: regex_parser
+ .parse("TDIGIT | TDIGIT Ndigits", Box::new(scan_tnt), true)?
+ .ok_or(ParseError::Invalid)?
+ .0,
+ };
+
+ let rules = vec![
+ rule1, rule2, rule3, rule4, rule5, rule6, rule7, rule8, rule9,
+ ];
+
+ Ok(Grammar::new(ter, non, rules))
+}
+
+/// Return a grammar that might serve as the grammar for my notes,
/// somehow.
#[allow(dead_code)]
pub fn new_notes_grammar() -> Result<Grammar, Box<dyn std::error::Error>> {