| // pest. The Elegant Parser |
| // Copyright (c) 2018 Dragoș Tiselice |
| // |
| // Licensed under the Apache License, Version 2.0 |
| // <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0> or the MIT |
| // license <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. All files in the project carrying such notice may not be copied, |
| // modified, or distributed except according to those terms. |
| |
| string = { "abc" } |
| insensitive = { ^"abc" } |
| range = { '0'..'9' } |
| ident = { string } |
| pos_pred = { &string } |
| neg_pred = { !string } |
| double_neg_pred = { !!string } |
| sequence = !{ string ~ string } |
| sequence_compound = ${ string ~ string } |
| sequence_atomic = @{ string ~ string } |
| sequence_non_atomic = @{ sequence } |
| sequence_atomic_compound = @{ sequence_compound } |
| sequence_nested = { string ~ string } |
| sequence_compound_nested = ${ sequence_nested } |
| choice = { string | range } |
| optional = { string? } |
| repeat = { string* } |
| repeat_atomic = @{ string* } |
| repeat_once = { string+ } |
| repeat_once_atomic = @{ string+ } |
| repeat_min_max = { string{2, 3} } |
| repeat_min_max_atomic = @{ string{2, 3} } |
| repeat_exact = { string{2} } |
| repeat_min = { string{2,} } |
| repeat_min_atomic = @{ string{2,} } |
| repeat_max = { string{, 2} } |
| repeat_max_atomic = @{ string{, 2} } |
| soi_at_start = { SOI ~ string } |
| repeat_mutate_stack = { (PUSH('a'..'c') ~ ",")* ~ POP ~ POP ~ POP } |
| peek_ = { PUSH(range) ~ PUSH(range) ~ PEEK ~ PEEK } |
| peek_all = { PUSH(range) ~ PUSH(range) ~ PEEK_ALL } |
| peek_slice_23 = { PUSH(range) ~ PUSH(range) ~ PUSH(range) ~ PUSH(range) ~ PUSH(range) ~ PEEK[1..-2] } |
| pop_ = { PUSH(range) ~ PUSH(range) ~ POP ~ POP } |
| pop_all = { PUSH(range) ~ PUSH(range) ~ POP_ALL } |
| pop_fail = { PUSH(range) ~ !POP ~ range ~ POP } |
| checkpoint_restore = ${ |
| PUSH("") ~ (PUSH("a") ~ "b" ~ POP | DROP ~ "b" | POP ~ "a") ~ EOI |
| } |
| ascii_digits = { ASCII_DIGIT+ } |
| ascii_nonzero_digits = { ASCII_NONZERO_DIGIT+ } |
| ascii_bin_digits = { ASCII_BIN_DIGIT+ } |
| ascii_oct_digits = { ASCII_OCT_DIGIT+ } |
| ascii_hex_digits = { ASCII_HEX_DIGIT+ } |
| ascii_alpha_lowers = { ASCII_ALPHA_LOWER+ } |
| ascii_alpha_uppers = { ASCII_ALPHA_UPPER+ } |
| ascii_alphas = { ASCII_ALPHA+ } |
| ascii_alphanumerics = { ASCII_ALPHANUMERIC+ } |
| asciis = { ASCII+ } |
| newline = { NEWLINE+ } |
| unicode = { XID_START ~ XID_CONTINUE* } |
| SYMBOL = { "shadows builtin" } |
| |
| WHITESPACE = _{ " " } |
| COMMENT = _{ "$"+ } |
| |
| // Line comment |
| |
| /* 1-line multiline comment */ |
| |
| /* |
| N-line multiline comment |
| */ |
| |
| /* |
| // Line comment inside multiline |
| |
| /* |
| (Multiline inside) multiline |
| */ |
| |
| Invalid segment of grammar below (repeated rule) |
| |
| WHITESPACE = _{ "hi" } |
| */ |
