added pest grammar v1

1 files changed, 588 insertions, 0 deletions

diff --git a/src/rst.pest b/src/rst.pest
new file mode 100644
index 0000000..cd19eed
--- /dev/null
+++ b/src/rst.pest
@@ -0,0 +1,588 @@
+// Original version https://github.com/hhatto/peg-rst
+// Copyright 2008 John MacFarlane (jgm at berkeley dot edu).
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License or the MIT
+// license.  See LICENSE for details.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+doc = { block* }
+
+block = {
+    blank_line* ~
+    ( block_quote
+    | verbatim
+    | image
+    | code_block
+    | doctest_block
+    | note
+    | reference
+    | horizontal_rule
+    | heading_title
+    | heading
+    | table
+    | ordered_list
+    | bullet_list
+    | html_block
+    | style_block
+    | para
+    | plain
+    )
+}
+
+para = { nonindent_space ~ inlines ~ blank_line+ }
+
+plain = { inlines }
+
+setext_bottom = { ( "=" | "-" | "*" | "^" | "~" )+ ~ NEWLINE }
+
+heading_title = {
+    &(setext_bottom ~ raw_line ~ setext_bottom) ~
+    setext_bottom ~
+    (!endline ~ inline)+ ~ sp ~ NEWLINE ~
+    setext_bottom
+}
+
+heading = {
+    &(raw_line ~ setext_bottom) ~
+    (!endline ~ inline)+ ~ sp ~ NEWLINE ~
+    setext_bottom
+}
+
+image = {
+    nonindent_space ~
+    ".. image:: " ~ source ~ blank_line ~
+    (
+        (sp ~ ":alt:" ~ sp ~ ref_source ~ blank_line) |
+        (sp ~ ":target:" ~ sp ~ source ~ blank_line) |
+        (sp ~ ":align:" ~ sp ~ source ~ blank_line)
+    )*
+}
+
+code_block = {
+    nonindent_space ~
+    ".. code" ~ "-block"? ~ ":: " ~ source ~ blank_line ~
+    NEWLINE ~ verbatim_chunk+
+}
+
+doctest_block = { (doctest_line+ ~ (!">" ~ !blank_line ~ line)*)+ }
+
+block_quote_raw = { ":" ~ blank_line ~ NEWLINE ~ nonblank_indented_line+ }
+
+block_quote_chunk = {
+    !"::" ~ ":" ~ blank_line ~
+    NEWLINE ~
+    blank_line* ~
+    nonblank_indented_line+
+}
+
+block_quote = { block_quote_chunk+ }
+
+nonblank_indented_line = { !blank_line ~ indented_line }
+
+verbatim_chunk = { blank_line* ~ nonblank_indented_line+ }
+
+verbatim = { verbatim_chunk+ }
+
+horizontal_rule = {
+    nonindent_space ~
+    ( "=" ~ sp ~ "=" ~ sp ~ "=" ~ (sp ~ "=")*
+    | "-" ~ sp ~ "-" ~ sp ~ "-" ~ (sp ~ "-")*
+    | "*" ~ sp ~ "*" ~ sp ~ "*" ~ (sp ~ "*")*
+    | "^" ~ sp ~ "^" ~ sp ~ "^" ~ (sp ~ "^")*
+    | "~" ~ sp ~ "~" ~ sp ~ "~" ~ (sp ~ "~")*
+    | "_" ~ sp ~ "_" ~ sp ~ "_" ~ (sp ~ "_")*
+    ) ~
+    sp ~ NEWLINE ~ blank_line+
+}
+
+table = { grid_table | header_less_grid_table | simple_table }
+
+simple_table = { "NotImplemented" ~ "simple_table" }
+
+grid_table = { grid_table_header ~ grid_table_header_sep ~ grid_table_body+ }
+
+header_less_grid_table = { grid_table_sep ~ grid_table_body+ }
+
+grid_table_header = { sp ~ "+" ~ ( "-"+ ~ "+" )+ ~ blank_line ~ grid_table_row+ }
+
+grid_table_body = { ( grid_table_row ~ grid_table_sep )+ }
+
+grid_table_row = { sp ~ "|" ~ sp ~ ( table_cell ~ sp ~ "|" )+ ~ blank_line }
+
+table_cell = { ( ":" | ">" | "<" | "/" | "-" | spacechar | escaped_char | alphanumeric )+ }
+
+grid_table_header_sep = { sp ~ "+" ~ ( "="+ ~ "+" )+ ~ blank_line }
+
+grid_table_sep = { sp ~ "+" ~ ( "-"+ ~ "+" )+ ~ blank_line }
+
+bullet = { !horizontal_rule ~ nonindent_space ~ ("+" | "*" | "-") ~ spacechar+ }
+
+bullet_list = { &bullet ~ (list_tight | list_loose) }
+
+list_tight = { list_item_tight+ ~ blank_line* ~ !(bullet | enumerator | def_marker) }
+
+list_loose = { ( list_item ~ blank_line* )+ }
+
+list_item = { (bullet | enumerator | def_marker) ~ list_block ~ list_continuation_block* }
+
+list_item_tight = {
+    (bullet | enumerator | def_marker) ~
+    list_block ~
+    (!blank_line ~ list_continuation_block)* ~
+    !list_continuation_block
+}
+
+list_block = { !blank_line ~ line ~ list_block_line* }
+
+list_continuation_block = { blank_line* ~ ( indent ~ list_block )+ }
+
+enumerator = { nonindent_space ~ (ASCII_DIGIT+ | "#"+) ~ "." ~ spacechar+ }
+
+ordered_list = { &enumerator ~ (list_tight | list_loose) }
+
+list_block_line = {
+    !blank_line ~
+    !( (indent? ~ (bullet | enumerator)) | def_marker ) ~
+    !horizontal_rule ~
+    optionally_indented_line
+}
+
+// Parsers for different kinds of block-level HTML content.
+// This is repetitive due to constraints of PEG grammar.
+
+html_block_open_address = { "<" ~ spnl ~ ("address" | "ADDRESS") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_address = { "<" ~ spnl ~ "/" ~ ("address" | "ADDRESS") ~ spnl ~ ">" }
+html_block_address = { html_block_open_address ~ (html_block_address | !html_block_close_address ~ ANY)* ~ html_block_close_address }
+
+html_block_open_blockquote = { "<" ~ spnl ~ ("block_quote" | "block_quote") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_blockquote = { "<" ~ spnl ~ "/" ~ ("block_quote" | "block_quote") ~ spnl ~ ">" }
+html_block_blockquote = { html_block_open_blockquote ~ (html_block_blockquote | !html_block_close_blockquote ~ ANY)* ~ html_block_close_blockquote }
+
+html_block_open_center = { "<" ~ spnl ~ ("center" | "CENTER") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_center = { "<" ~ spnl ~ "/" ~ ("center" | "CENTER") ~ spnl ~ ">" }
+html_block_center = { html_block_open_center ~ (html_block_center | !html_block_close_center ~ ANY)* ~ html_block_close_center }
+
+html_block_open_dir = { "<" ~ spnl ~ ("dir" | "DIR") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_dir = { "<" ~ spnl ~ "/" ~ ("dir" | "DIR") ~ spnl ~ ">" }
+html_block_dir = { html_block_open_dir ~ (html_block_dir | !html_block_close_dir ~ ANY)* ~ html_block_close_dir }
+
+html_block_open_div = { "<" ~ spnl ~ ("div" | "DIV") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_div = { "<" ~ spnl ~ "/" ~ ("div" | "DIV") ~ spnl ~ ">" }
+html_block_div = { html_block_open_div ~ (html_block_div | !html_block_close_div ~ ANY)* ~ html_block_close_div }
+
+html_block_open_dl = { "<" ~ spnl ~ ("dl" | "DL") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_dl = { "<" ~ spnl ~ "/" ~ ("dl" | "DL") ~ spnl ~ ">" }
+html_block_dl = { html_block_open_dl ~ (html_block_dl | !html_block_close_dl ~ ANY)* ~ html_block_close_dl }
+
+html_block_open_fieldset = { "<" ~ spnl ~ ("fieldset" | "FIELDSET") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_fieldset = { "<" ~ spnl ~ "/" ~ ("fieldset" | "FIELDSET") ~ spnl ~ ">" }
+html_block_fieldset = { html_block_open_fieldset ~ (html_block_fieldset | !html_block_close_fieldset ~ ANY)* ~ html_block_close_fieldset }
+
+html_block_open_form = { "<" ~ spnl ~ ("form" | "FORM") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_form = { "<" ~ spnl ~ "/" ~ ("form" | "FORM") ~ spnl ~ ">" }
+html_block_form = { html_block_open_form ~ (html_block_form | !html_block_close_form ~ ANY)* ~ html_block_close_form }
+
+html_block_open_h_1 = { "<" ~ spnl ~ ("h1" | "H1") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_h_1 = { "<" ~ spnl ~ "/" ~ ("h1" | "H1") ~ spnl ~ ">" }
+html_block_h_1 = { html_block_open_h_1 ~ (html_block_h_1 | !html_block_close_h_1 ~ ANY)* ~ html_block_close_h_1 }
+
+html_block_open_h_2 = { "<" ~ spnl ~ ("h2" | "H2") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_h_2 = { "<" ~ spnl ~ "/" ~ ("h2" | "H2") ~ spnl ~ ">" }
+html_block_h_2 = { html_block_open_h_2 ~ (html_block_h_2 | !html_block_close_h_2 ~ ANY)* ~ html_block_close_h_2 }
+
+html_block_open_h_3 = { "<" ~ spnl ~ ("h3" | "H3") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_h_3 = { "<" ~ spnl ~ "/" ~ ("h3" | "H3") ~ spnl ~ ">" }
+html_block_h_3 = { html_block_open_h_3 ~ (html_block_h_3 | !html_block_close_h_3 ~ ANY)* ~ html_block_close_h_3 }
+
+html_block_open_h_4 = { "<" ~ spnl ~ ("h4" | "H4") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_h_4 = { "<" ~ spnl ~ "/" ~ ("h4" | "H4") ~ spnl ~ ">" }
+html_block_h_4 = { html_block_open_h_4 ~ (html_block_h_4 | !html_block_close_h_4 ~ ANY)* ~ html_block_close_h_4 }
+
+html_block_open_h_5 = { "<" ~ spnl ~ ("h5" | "H5") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_h_5 = { "<" ~ spnl ~ "/" ~ ("h5" | "H5") ~ spnl ~ ">" }
+html_block_h_5 = { html_block_open_h_5 ~ (html_block_h_5 | !html_block_close_h_5 ~ ANY)* ~ html_block_close_h_5 }
+
+html_block_open_h_6 = { "<" ~ spnl ~ ("h6" | "H6") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_h_6 = { "<" ~ spnl ~ "/" ~ ("h6" | "H6") ~ spnl ~ ">" }
+html_block_h_6 = { html_block_open_h_6 ~ (html_block_h_6 | !html_block_close_h_6 ~ ANY)* ~ html_block_close_h_6 }
+
+html_block_open_menu = { "<" ~ spnl ~ ("menu" | "MENU") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_menu = { "<" ~ spnl ~ "/" ~ ("menu" | "MENU") ~ spnl ~ ">" }
+html_block_menu = { html_block_open_menu ~ (html_block_menu | !html_block_close_menu ~ ANY)* ~ html_block_close_menu }
+
+html_block_open_noframes = { "<" ~ spnl ~ ("noframes" | "NOFRAMES") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_noframes = { "<" ~ spnl ~ "/" ~ ("noframes" | "NOFRAMES") ~ spnl ~ ">" }
+html_block_noframes = { html_block_open_noframes ~ (html_block_noframes | !html_block_close_noframes ~ ANY)* ~ html_block_close_noframes }
+
+html_block_open_noscript = { "<" ~ spnl ~ ("noscript" | "NOSCRIPT") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_noscript = { "<" ~ spnl ~ "/" ~ ("noscript" | "NOSCRIPT") ~ spnl ~ ">" }
+html_block_noscript = { html_block_open_noscript ~ (html_block_noscript | !html_block_close_noscript ~ ANY)* ~ html_block_close_noscript }
+
+html_block_open_ol = { "<" ~ spnl ~ ("ol" | "OL") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_ol = { "<" ~ spnl ~ "/" ~ ("ol" | "OL") ~ spnl ~ ">" }
+html_block_ol = { html_block_open_ol ~ (html_block_ol | !html_block_close_ol ~ ANY)* ~ html_block_close_ol }
+
+html_block_open_p = { "<" ~ spnl ~ ("p" | "P") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_p = { "<" ~ spnl ~ "/" ~ ("p" | "P") ~ spnl ~ ">" }
+html_block_p = { html_block_open_p ~ (html_block_p | !html_block_close_p ~ ANY)* ~ html_block_close_p }
+
+html_block_open_pre = { "<" ~ spnl ~ ("pre" | "PRE") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_pre = { "<" ~ spnl ~ "/" ~ ("pre" | "PRE") ~ spnl ~ ">" }
+html_block_pre = { html_block_open_pre ~ (html_block_pre | !html_block_close_pre ~ ANY)* ~ html_block_close_pre }
+
+html_block_open_table = { "<" ~ spnl ~ ("table" | "table") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_table = { "<" ~ spnl ~ "/" ~ ("table" | "table") ~ spnl ~ ">" }
+html_block_table = { html_block_open_table ~ (html_block_table | !html_block_close_table ~ ANY)* ~ html_block_close_table }
+
+html_block_open_ul = { "<" ~ spnl ~ ("ul" | "UL") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_ul = { "<" ~ spnl ~ "/" ~ ("ul" | "UL") ~ spnl ~ ">" }
+html_block_ul = { html_block_open_ul ~ (html_block_ul | !html_block_close_ul ~ ANY)* ~ html_block_close_ul }
+
+html_block_open_dd = { "<" ~ spnl ~ ("dd" | "DD") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_dd = { "<" ~ spnl ~ "/" ~ ("dd" | "DD") ~ spnl ~ ">" }
+html_block_dd = { html_block_open_dd ~ (html_block_dd | !html_block_close_dd ~ ANY)* ~ html_block_close_dd }
+
+html_block_open_dt = { "<" ~ spnl ~ ("dt" | "DT") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_dt = { "<" ~ spnl ~ "/" ~ ("dt" | "DT") ~ spnl ~ ">" }
+html_block_dt = { html_block_open_dt ~ (html_block_dt | !html_block_close_dt ~ ANY)* ~ html_block_close_dt }
+
+html_block_open_frameset = { "<" ~ spnl ~ ("frameset" | "FRAMESET") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_frameset = { "<" ~ spnl ~ "/" ~ ("frameset" | "FRAMESET") ~ spnl ~ ">" }
+html_block_frameset = { html_block_open_frameset ~ (html_block_frameset | !html_block_close_frameset ~ ANY)* ~ html_block_close_frameset }
+
+html_block_open_li = { "<" ~ spnl ~ ("li" | "LI") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_li = { "<" ~ spnl ~ "/" ~ ("li" | "LI") ~ spnl ~ ">" }
+html_block_li = { html_block_open_li ~ (html_block_li | !html_block_close_li ~ ANY)* ~ html_block_close_li }
+
+html_block_open_tbody = { "<" ~ spnl ~ ("tbody" | "TBODY") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_tbody = { "<" ~ spnl ~ "/" ~ ("tbody" | "TBODY") ~ spnl ~ ">" }
+html_block_tbody = { html_block_open_tbody ~ (html_block_tbody | !html_block_close_tbody ~ ANY)* ~ html_block_close_tbody }
+
+html_block_open_td = { "<" ~ spnl ~ ("td" | "TD") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_td = { "<" ~ spnl ~ "/" ~ ("td" | "TD") ~ spnl ~ ">" }
+html_block_td = { html_block_open_td ~ (html_block_td | !html_block_close_td ~ ANY)* ~ html_block_close_td }
+
+html_block_open_tfoot = { "<" ~ spnl ~ ("tfoot" | "TFOOT") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_tfoot = { "<" ~ spnl ~ "/" ~ ("tfoot" | "TFOOT") ~ spnl ~ ">" }
+html_block_tfoot = { html_block_open_tfoot ~ (html_block_tfoot | !html_block_close_tfoot ~ ANY)* ~ html_block_close_tfoot }
+
+html_block_open_th = { "<" ~ spnl ~ ("th" | "TH") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_th = { "<" ~ spnl ~ "/" ~ ("th" | "TH") ~ spnl ~ ">" }
+html_block_th = { html_block_open_th ~ (html_block_th | !html_block_close_th ~ ANY)* ~ html_block_close_th }
+
+html_block_open_thead = { "<" ~ spnl ~ ("thead" | "THEAD") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_thead = { "<" ~ spnl ~ "/" ~ ("thead" | "THEAD") ~ spnl ~ ">" }
+html_block_thead = { html_block_open_thead ~ (html_block_thead | !html_block_close_thead ~ ANY)* ~ html_block_close_thead }
+
+html_block_open_tr = { "<" ~ spnl ~ ("tr" | "TR") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_tr = { "<" ~ spnl ~ "/" ~ ("tr" | "TR") ~ spnl ~ ">" }
+html_block_tr = { html_block_open_tr ~ (html_block_tr | !html_block_close_tr ~ ANY)* ~ html_block_close_tr }
+
+html_block_open_script = { "<" ~ spnl ~ ("script" | "SCRIPT") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_script = { "<" ~ spnl ~ "/" ~ ("script" | "SCRIPT") ~ spnl ~ ">" }
+html_block_script = { html_block_open_script ~ (!html_block_close_script ~ ANY)* ~ html_block_close_script }
+
+html_block_open_head = { "<" ~ spnl ~ ("head" | "HEAD") ~ spnl ~ html_attribute* ~ ">" }
+html_block_close_head = { "<" ~ spnl ~ "/" ~ ("head" | "HEAD") ~ spnl ~ ">" }
+html_block_head = { html_block_open_head ~ (!html_block_close_head ~ ANY)* ~ html_block_close_head }
+
+html_block_in_tags = {
+    html_block_address
+    | html_block_blockquote
+    | html_block_center
+    | html_block_dir
+    | html_block_div
+    | html_block_dl
+    | html_block_fieldset
+    | html_block_form
+    | html_block_h_1
+    | html_block_h_2
+    | html_block_h_3
+    | html_block_h_4
+    | html_block_h_5
+    | html_block_h_6
+    | html_block_menu
+    | html_block_noframes
+    | html_block_noscript
+    | html_block_ol
+    | html_block_p
+    | html_block_pre
+    | html_block_table
+    | html_block_ul
+    | html_block_dd
+    | html_block_dt
+    | html_block_frameset
+    | html_block_li
+    | html_block_tbody
+    | html_block_td
+    | html_block_tfoot
+    | html_block_th
+    | html_block_thead
+    | html_block_tr
+    | html_block_script
+    | html_block_head
+}
+
+html_block = { &"<" ~ ( html_block_in_tags | html_comment | html_block_self_closing ) ~ blank_line+ }
+
+html_block_self_closing = { "<" ~ spnl ~ html_block_type ~ spnl ~ html_attribute* ~ "/" ~ spnl ~ ">" }
+
+html_block_type = {
+    "address" | "block_quote" | "center" | "dir" | "div" | "dl" | "fieldset" | "form" | "h1" | "h2" | "h3" |
+    "h4" | "h5" | "h6" | "hr" | "isindex" | "menu" | "noframes" | "noscript" | "ol" | "p" | "pre" | "table" |
+    "ul" | "dd" | "dt" | "frameset" | "li" | "tbody" | "td" | "tfoot" | "th" | "thead" | "tr" | "script" |
+    "ADDRESS" | "block_quote" | "CENTER" | "DIR" | "DIV" | "DL" | "FIELDSET" | "FORM" | "H1" | "H2" | "H3" |
+    "H4" | "H5" | "H6" | "HR" | "ISINDEX" | "MENU" | "NOFRAMES" | "NOSCRIPT" | "OL" | "P" | "PRE" | "table" |
+    "UL" | "DD" | "DT" | "FRAMESET" | "LI" | "TBODY" | "TD" | "TFOOT" | "TH" | "THEAD" | "TR" | "SCRIPT"
+}
+
+style_open = { "<" ~ spnl ~ ("style" | "STYLE") ~ spnl ~ html_attribute* ~ ">" }
+style_close = { "<" ~ spnl ~ "/" ~ ("style" | "STYLE") ~ spnl ~ ">" }
+in_style_tags = { style_open ~ (!style_close ~ ANY)* ~ style_close }
+style_block = { in_style_tags ~ blank_line* }
+
+inlines = { ( !endline ~ inline | endline ~ &inline )+ ~ endline? }
+
+inline = {
+    link
+    | str
+    | endline
+    | ul_or_star_line
+    | space
+    | strong
+    | emph
+    | strike
+    | note_reference
+    | footnote
+    //| citation
+    | code
+    | application_depent
+    | raw_html
+    | entity
+    | escaped_char
+    | smart
+    | symbol
+}
+
+space = { spacechar+ }
+
+str = { normal_char+ ~ str_chunk* }
+
+str_chunk = { (normal_char | "_"+ ~ &alphanumeric)+ | apos_chunk }
+
+apos_chunk = {
+    // &{ extension(EXT_SMART) } ~
+    "'" ~ &alphanumeric
+}
+
+escaped_char = { "\\" ~ !NEWLINE ~ ("-" | "\\" | "`" | "|" | "*" | "_" | "{" | "}" | "[" | "]" | "(" | ")" | "#" | "+" | "." | "!" | ">" | "<") }
+
+entity = { hex_entity | dec_entity | char_entity }
+
+endline = { line_break | terminal_endline | normal_endline }
+
+normal_endline = { sp ~ NEWLINE ~ !blank_line ~ !">" ~ !(line ~ ("="+ | "-"+) ~ NEWLINE) }
+
+terminal_endline = { sp ~ NEWLINE ~ EOI }
+
+line_break = { "  " ~ normal_endline }
+
+symbol = { special_char }
+
+application_depent = { !("`_" | "``_") ~ "`" ~ !"``" ~ quoted_ref_source ~ "`" ~ !("``" | "_") }
+
+// This keeps the parser from getting bogged down on long strings of "*" or "_",
+// or strings of "*" or "_" with space on each side:
+ul_or_star_line = { ul_line | star_line }
+star_line = { "****" ~ "*"* | spacechar ~ "*"+ ~ &spacechar }
+ul_line = { "____" ~ "_"* | spacechar ~ "_"+ ~ &spacechar }
+
+whitespace = { spacechar | NEWLINE }
+
+emph = { "*" ~ !whitespace ~ ( !"*" ~ inline )+ ~ "*" }
+
+strong = { "**" ~ !whitespace ~ ( !"**" ~ inline )+ ~ "**" }
+
+strike = {
+    //&{ extension(EXT_STRIKE) } ~
+    "~~" ~ !whitespace ~ ( !"~~" ~ inline )+ ~ "~~"
+}
+
+link = { reference_link | explicit_link | auto_link }
+
+reference_link = { unquoted_ref_link_underbar | quoted_ref_link_underbar }
+unquoted_ref_link_underbar = { unquoted_link_source ~ "_" }
+quoted_ref_link_underbar = { ( !"`_" ~ !"``_" ~ "`" ~ !"``" ) ~ quoted_ref_source ~ ( "`" ~ !"``" ) ~ "_" }
+
+explicit_link = { label ~ "(" ~ sp ~ source ~ spnl ~ title ~ sp ~ ")" }
+
+source = { source_contents }
+source_contents = { ( ( !"(" ~ !")" ~ !">" ~ nonspacechar )+ | "(" ~ source_contents ~ ")")* }
+
+title = { ( title_single | title_double | "" ) }
+title_single = { "'" ~ ( !( "'" ~ sp ~ (")" | NEWLINE) ) ~ ANY )* ~ "'" }
+title_double = { "\"" ~ ( !( "\"" ~ sp ~ (")" | NEWLINE) ) ~ ANY )* ~ "\"" }
+
+auto_link = { embedded_link | auto_link_url | auto_link_email }
+embedded_link = { "`" ~ embedded_ref_source ~ "<" ~ ASCII_ALPHA+ ~ "://" ~ ( !NEWLINE ~ !">" ~ ANY )+ ~ ">`_" ~ "_"? }
+auto_link_url = { ASCII_ALPHA+ ~ "://" ~ (!NEWLINE ~ !">" ~ ANY)+ }
+auto_link_email = { "<" ~ "mailto:"? ~ (ASCII_ALPHANUMERIC|"-"|"+"|"_"|"."|"/"|"!"|"%"|"~"|"$")+ ~ "@" ~ (!NEWLINE ~ !">" ~ ANY)+ ~ ">" }
+
+reference = { quoted_reference | unquoted_reference }
+quoted_reference = { nonindent_space ~ ".. _`" ~ !"``" ~ quoted_ref_source ~ !"``:" ~ "`: " ~ ref_src ~ blank_line }
+unquoted_reference = { nonindent_space ~ ".. _" ~ ref_source ~ ": " ~ ref_src ~ blank_line }
+
+unquoted_link_source = { (!"_" ~ !":" ~ !"`" ~ nonspacechar)* }
+
+ref_source = { ( !"_" ~ !":" ~ !"`" ~ (" " | nonspacechar) )* }
+quoted_ref_source = { ( !":" ~ !"`" ~ (" " | nonspacechar) )* }
+embedded_ref_source = { ( !"<" ~ !":" ~ !"`" ~ ( " " | nonspacechar | blank_line ) )* }
+
+label = {
+    "[" ~ (
+        !"^" //~ &{ extension(EXT_NOTES) }
+        | &ANY //~ &{ extension(EXT_NOTES) }
+    ) ~ (!"]" ~ inline)* ~ "]"
+}
+
+ref_src = { nonspacechar+ }
+
+empty_title = { "" }
+
+references = { ( reference | skip_block )* }
+
+ticks_2 = { "``" ~ !"`" }
+
+code = { ticks_2 ~ ( (!"`" ~ nonspacechar)+ | "_" | !ticks_2 ~ "`" | !(sp ~ ticks_2) ~ (spacechar | NEWLINE ~ !blank_line) )+ ~ ticks_2 }
+
+raw_html = { (html_comment | html_block_script | html_tag) }
+
+blank_line = { sp ~ NEWLINE }
+
+quoted = {
+    "\"" ~ (!"\"" ~ ANY)* ~ "\"" |
+    "'"  ~ (!"'"  ~ ANY)* ~ "'"
+}
+html_attribute = { (ASCII_ALPHANUMERIC | "-")+ ~ spnl ~ ("=" ~ spnl ~ (quoted | (!">" ~ nonspacechar)+))? ~ spnl }
+html_comment = { "<!--" ~ (!"-->" ~ ANY)* ~ "-->" }
+html_tag = { "<" ~ spnl ~ "/"? ~ ASCII_ALPHANUMERIC+ ~ spnl ~ html_attribute* ~ "/"? ~ spnl ~ ">" }
+spacechar = { " " | "\t" }
+nonspacechar = { !spacechar ~ !NEWLINE ~ ANY }
+sp = { spacechar* }
+spnl = { sp ~ (NEWLINE ~ sp)? }
+special_char = { "~" | "*" | "_" | "`" | "&" | "[" | "]" | "(" | ")" | "<" | "!" | "#" | "\\" | "\"" | "'" | extended_special_char }
+normal_char = { !( special_char | spacechar | NEWLINE ) ~ ANY }
+alphanumeric = {
+    ASCII_ALPHANUMERIC |
+    "\u{200}" | "\u{201}" | "\u{202}" | "\u{203}" | "\u{204}" | "\u{205}" | "\u{206}" | "\u{207}" |
+    "\u{210}" | "\u{211}" | "\u{212}" | "\u{213}" | "\u{214}" | "\u{215}" | "\u{216}" | "\u{217}" |
+    "\u{220}" | "\u{221}" | "\u{222}" | "\u{223}" | "\u{224}" | "\u{225}" | "\u{226}" | "\u{227}" |
+    "\u{230}" | "\u{231}" | "\u{232}" | "\u{233}" | "\u{234}" | "\u{235}" | "\u{236}" | "\u{237}" |
+    "\u{240}" | "\u{241}" | "\u{242}" | "\u{243}" | "\u{244}" | "\u{245}" | "\u{246}" | "\u{247}" |
+    "\u{250}" | "\u{251}" | "\u{252}" | "\u{253}" | "\u{254}" | "\u{255}" | "\u{256}" | "\u{257}" |
+    "\u{260}" | "\u{261}" | "\u{262}" | "\u{263}" | "\u{264}" | "\u{265}" | "\u{266}" | "\u{267}" |
+    "\u{270}" | "\u{271}" | "\u{272}" | "\u{273}" | "\u{274}" | "\u{275}" | "\u{276}" | "\u{277}" |
+    "\u{300}" | "\u{301}" | "\u{302}" | "\u{303}" | "\u{304}" | "\u{305}" | "\u{306}" | "\u{307}" |
+    "\u{310}" | "\u{311}" | "\u{312}" | "\u{313}" | "\u{314}" | "\u{315}" | "\u{316}" | "\u{317}" |
+    "\u{320}" | "\u{321}" | "\u{322}" | "\u{323}" | "\u{324}" | "\u{325}" | "\u{326}" | "\u{327}" |
+    "\u{330}" | "\u{331}" | "\u{332}" | "\u{333}" | "\u{334}" | "\u{335}" | "\u{336}" | "\u{337}" |
+    "\u{340}" | "\u{341}" | "\u{342}" | "\u{343}" | "\u{344}" | "\u{345}" | "\u{346}" | "\u{347}" |
+    "\u{350}" | "\u{351}" | "\u{352}" | "\u{353}" | "\u{354}" | "\u{355}" | "\u{356}" | "\u{357}" |
+    "\u{360}" | "\u{361}" | "\u{362}" | "\u{363}" | "\u{364}" | "\u{365}" | "\u{366}" | "\u{367}" |
+    "\u{370}" | "\u{371}" | "\u{372}" | "\u{373}" | "\u{374}" | "\u{375}" | "\u{376}" | "\u{377}"
+}
+
+hex_entity = { "&#" ~ ("X"|"x") ~ ('0'..'9' | 'a'..'f' | 'A'..'F')+ ~ ";" }
+dec_entity = { "&#" ~ ASCII_DIGIT+ ~ ";" }
+char_entity = { "&" ~ ASCII_ALPHANUMERIC+ ~ ";" }
+
+nonindent_space = { "   " | "  " | " " | "" }
+indent = { "\t" | "    " }
+indented_line = { indent ~ line }
+optionally_indented_line = { indent? ~ line }
+
+doctest_line = { ">>> " ~ raw_line }
+
+line = { raw_line }
+
+raw_line = { ( (!NEWLINE ~ ANY)* ~ NEWLINE | ANY+ ~ EOI ) }
+
+skip_block = {
+    html_block |
+    ( !"#" ~ !setext_bottom ~ !blank_line ~ raw_line )+ ~ blank_line* |
+    blank_line+ |
+    raw_line
+}
+
+// Syntax extensions
+
+extended_special_char = {
+    //&{ extension(EXT_SMART) } ~
+    ("." | "-" | "\"" | "'") |
+    //&{ extension(EXT_NOTES) } ~
+    "^"
+}
+
+smart = {
+    //&{ extension(EXT_SMART) } ~
+    ( ellipsis | dash | single_quoted | double_quoted | apostrophe )
+}
+
+apostrophe = { "'" }
+
+ellipsis = { "..." | ". . ." }
+
+dash = { em_dash | en_dash }
+en_dash = { "-" ~ &ASCII_DIGIT }
+em_dash = { "---" | "--" }
+
+single_quote_start = { "'" ~ !(spacechar | NEWLINE) }
+single_quote_end = { "'" ~ !alphanumeric }
+single_quoted = { single_quote_start ~ ( !single_quote_end ~ inline )+ ~ single_quote_end }
+
+double_quote_start = { "\"" }
+double_quote_end = { "\"" }
+double_quoted = { double_quote_start ~ ( !double_quote_end ~ inline )+ ~ double_quote_end }
+
+note_reference = {
+    //&{ extension(EXT_NOTES) } ~
+    raw_note_reference
+}
+
+raw_note_reference = { "[^" ~ ( !(NEWLINE | "]") ~ ANY )+ ~ "]" }
+
+note = {
+    //&{ extension(EXT_NOTES) } ~
+    nonindent_space ~ raw_note_reference ~ ":" ~ sp ~
+    raw_note_block ~
+    ( &indent ~ raw_note_block )*
+}
+
+footnote = { "[#" ~ (!"]" ~ inline)+ ~ "]_" }
+
+notes = { (note | skip_block)* }
+
+raw_note_block = { ( !blank_line ~ optionally_indented_line )+ ~ blank_line* }
+
+
+definition = {
+    &( (nonindent_space ~ !defmark ~ nonspacechar ~ raw_line) ~ blank_line? ~ defmark) ~
+    d_list_title+ ~
+    (def_tight | def_loose)
+}
+
+d_list_title = { nonindent_space ~ !defmark ~ &nonspacechar ~ (!endline ~ inline)+ ~ sp ~ NEWLINE }
+
+def_tight = { &defmark ~ list_tight }
+def_loose = { blank_line ~ &defmark ~ list_loose }
+
+defmark = { nonindent_space ~ (":" | "~") ~ spacechar+ }
+def_marker = {
+    //&{ extension(EXT_DLISTS) } ~
+    defmark
+}