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_MD2HTML.ahk
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_MD2HTML.ahk
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#Requires AutoHotkey v2.0
; ================================================
; https://github.com/TheArkive/M-ArkDown_ahk2
;
; Example Script - this just asks for a file and
; uses make_html() to convert the M-ArkDown into html.
;
; MIT License
; Copyright (c) 2021 TheArkive
;
; Permission is hereby granted, free of charge, to any person obtaining a
; copy of this software and associated documentation files (the "Software"),
; to deal in the Software without restriction, including without limitation
; the rights to use, copy, modify, merge, publish, distribute, sublicense,
; and/or sell copies of the Software, and to permit persons to whom the
; Software is furnished to do so, subject to the following conditions:
;
; The above copyright notice and this permission notice shall be included
; in all copies or substantial portions of the Software.
;
; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
; OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
; THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
; FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
; IN THE SOFTWARE.
; ================================================
; file_path := FileSelect("1",A_ScriptDir '\index.md',"Select markdown file:","Markdown (*.md)")
; If !file_path
; ExitApp
; SplitPath file_path,,&dir,,&file_title
; If FileExist(dir "\" file_title ".html")
; FileDelete dir "\" file_title ".html"
; md_txt := FileRead(file_path)
; css := FileRead("style.css")
; options := {css:css
; , font_name:"Segoe UI"
; , font_size:16
; , font_weight:400
; , line_height:"1.6"} ; 1.6em - put decimals in "" for easier accuracy/handling.
; html := make_html(md_txt, options, true) ; true/false = use some github elements
; FileAppend html, dir "\" file_title ".html", "UTF-8"
; Run dir "\" file_title ".html" ; open and test
; dbg(_in) { ; AHK v2
; Loop Parse _in, "`n", "`r"
; OutputDebug "AHK: " A_LoopField
; }
; ================================================
; make_html(_in_html, options_obj:="", github:=false)
;
; Ignore the last 2 params. Those are used internally.
;
; See above for constructing the options_obj.
;
; The "github" param is a work in progress, and tries to enforce some of the expected basics
; that are circumvented with my "flavor" of markdown.
;
; Current effects when [ github := true ]:
; * H1 and H2 always have underline (the [underline] tag still takes effect when specified)
; * the '=' is not usable for making an <hr>, but --- *** and ___ still make <hr>
;
; ================================================
make_html(_in_text, options:="", github:=false, final:=true, md_type:="") {
If !RegExMatch(_in_text,"[`r`n]+$") && (final) && md_type!="header" { ; add trailing CRLF if doesn't exist
_in_text .= "`r`n"
}
html1 := "<html><head><style>`r`n"
html2 := "`r`n</style></head>`r`n`r`n<body>"
toc_html1 := '<div id="toc-container">'
. '<div id="toc-icon" align="right">☰</div>' ; hamburger (3 horizontal lines) icon
. '<div id="toc-contents">'
toc_html2 := "</div></div>" ; end toc-container and toc-contents
html3 := '<div id="body-container"><div id="main">`r`n' ; <div id=" q "body-container" q ">
html4 := "</div></div></body></html>" ; </div>
body := ""
toc := [], do_toc := false
do_nav := false, nav_arr := []
ref := Map(), ref.CaseSense := false
foot := Map(), ref.CaseSense := false
link_ico := "•" ; 🔗 •
Static chk_id := 0 ; increments throughout entire document
If (final)
css := options.css
a := StrSplit(_in_text,"`n","`r")
i := 0
ref_link_rgx := '^\x5B(\^)?([\w ]+)\x5D:([^"]+)(?:"([^"]+)")?'
in_code := false, code_tag := ""
While (i < a.Length) { ; parse for ref-style links and footnotes first
i++, line := strip_comment(a[i])
If !in_code && RegExMatch(line,"^(``{3,4})$",&c)
in_code := true, code_tag := c[1] ; , msgbox("IN CODE`n`n" line "`n" a[i+1] "`n" a[i+2] "`n" a[i+3])
Else If in_code && RegExMatch(line,"^(``{3,4})",&c) && c[1]=code_tag
in_code := false, code_tag := ""
If !in_code && RegExMatch(line,ref_link_rgx,&m) {
If m[1]
foot[m[2]] := {link:m[3],title:m[4]} ; foot notes
Else
ref[m[2]] := {link:m[3],title:m[4]} ; reference-style links / images
}
}
i := 0
While (i < a.Length) { ; ( ) \x28 \x29 ; [ ] \x5B \x5D ; { } \x7B \x7D
i++, line := strip_comment(a[i])
ul := "", ul2 := ""
ol := "", ol2 := "", ol_type := ""
If RegExMatch(line,ref_link_rgx) ; skip ref-style links and footnotes
Continue
If RegExMatch(line,"^<nav")
Continue
If (final && line = "<toc>") {
do_toc := True
Continue
}
While RegExMatch(line,"\\$") { ; concat lines ending in '\'
If !line_inc(line := SubStr(line,1,-1) '<br>')
Break
}
While (i < a.Length && RegExMatch(line,"\\$")) ; concatenate lines ending in `\` with next line
line := SubStr(line,1,-1) '<br>' strip_comment(a[++i])
If final && RegExMatch(line, "^<nav\|") && a.Has(i+1) && (a[i+1] = "") {
do_nav := True
nav_arr := StrSplit(Trim(line,"<>"),"|")
nav_arr.RemoveAt(1)
Continue
}
code_block := "" ; code block
If (line = "``````") || (line = "````````") {
match := line
If !line_inc()
Break
While (line != match) {
code_block .= (code_block?"`r`n":"") line
If !line_inc()
Break
}
body .= (body?"`r`n":"") "<pre><code>" convert(code_block) "</code></pre>"
Continue
}
; header h1 - h6
If RegExMatch(line, "^(#+) (.+?)(?:\x5B[ \t]*(\w+)[ \t]*\x5D)?$", &n) {
depth := StrLen(n[1]), title := inline_code(Trim(n[2]," `t"))
_class := (depth <= 2 || n[3]="underline") ? "underline" : ""
id := RegExReplace(RegExReplace(StrLower(title),"[\[\]\{\}\(\)\@\!]",""),"[ \.]","-")
opener := "<h" depth (id?' id="' id '" ':'') (_class?' class="' _class '"':'') '>'
body .= (body?"`r`n":"") opener title
. '<a href="#' id '"><span class="link">' link_ico '</span></a>'
. '</h' depth '>'
toc.Push([depth, title, id])
Continue
}
; alt header h1 and h2
; ------ or ======= as underline in next_line
next_line := a.Has(i+1) ? strip_comment(a[i+1]) : ""
If next_line && line && RegExMatch(next_line,"^(\-+|=+)$") {
depth := (SubStr(next_line,1,1) = "=") ? 1 : 2
id := RegExReplace(RegExReplace(StrLower(line),"[\[\]\{\}\(\)\@\!<>\|]",""),"[ \.]","-")
opener := "<h" depth ' id="' id '" class="underline">'
body .= (body?"`r`n":"") opener inline_code(line)
. '<a href="#' id '"><span class="link">' link_ico '</span></a>'
. '</h' depth '>'
toc.Push([depth, line, id]), i++ ; increase line count to skip the ---- or ==== form next_line
Continue
}
; check list
If RegExMatch(line,"^\- \x5B([ xX])\x5D (.+)",&n) {
body .= (body?"`r`n":"") '<ul class="checklist">'
While RegExMatch(line,"^\- \x5B([ xX])\x5D (.+)",&n) {
chk := (n[1]="x") ? 'checked=""' : ''
body .= '`r`n<li><input type="checkbox" id="check' chk_id '" disabled="" ' chk '>'
. '<label for="check' chk_id '"> ' n[2] '</label></li>'
chk_id++
If !line_inc()
Break
}
body .= '</ul>'
Continue
}
; spoiler
spoiler_text := ""
If RegExMatch(line, "^<spoiler=([^>]+)>$", &match) {
disp_text := match[1]
If !line_inc()
Break
While !RegExMatch(line, "^</spoiler>$") {
spoiler_text .= (spoiler_text?"`r`n":"") line
If !line_inc()
throw Error("No closing </spoiler> tag found.",-1)
}
body .= (body?"`r`n":"") '<p><details><summary class="spoiler">'
. disp_text "</summary>" make_html(spoiler_text,,github,false,"spoiler") "</details></p>"
Continue
}
; hr
if RegExMatch(line, "^(\-{3,}|_{3,}|\*{3,}|={3,})(?:\x5B[ \t]*([^\x5D]+)*[ \t]*\x5D)?$", &match) {
hr_style := ""
If match[2] {
For i, style in StrSplit(match[2]," ","`t") {
If (SubStr(style, -2) = "px")
hr_style .= (hr_style?" ":"") "border-top-width: " style ";"
Else If RegExMatch(style, "(dotted|dashed|solid|double|groove|ridge|inset|outset|none|hidden)")
hr_style .= (hr_style?" ":"") "border-top-style: " style ";"
Else If InStr(style,"opacity")=1
hr_style .= (hr_style?" ":"") style ";"
Else
hr_style .= (hr_style?" ":"") "border-top-color: " style ";"
}
} Else {
hr_style := "opacity: 0.25;"
}
body .= (body?"`r`n":"") '<hr style="' hr_style '">'
Continue
}
; blockquote
If RegExMatch(line, "^\> *(.*)") {
blockquote := ""
While RegExMatch(line, "^\> *(.*)", &match) {
blockquote .= (blockquote?"`r`n":"") match[1]
If !line_inc()
Break
}
body .= (body?"`r`n":"") "<blockquote>" make_html(blockquote,,github, false, "blockquote") "</blockquote>"
Continue
}
; table
If RegExMatch(line, "^\|.*?\|$") {
table := "", lines := 0
While RegExMatch(line, "^\|.*?\|$") {
table .= (table?"`r`n":"") line, lines++
If !line_inc()
Break
}
If lines < 3
Continue
If (table) {
b := [], h := [], body .= (body?"`r`n":"") '<table class="normal">'
Loop Parse table, "`n", "`r"
{
body .= "<tr>"
c := StrSplit(A_LoopField,"|"), c.RemoveAt(1), c.RemoveAt(c.Length)
If (A_Index = 1) {
For i, t in c { ; table headers
txt := inline_code(Trim(t," `t")) ; , align := "center"
If RegExMatch(txt,"^(:)?(.+?)(:)?$",&n) {
align := (n[1]&&n[3]) ? "center" : (n[3]) ? "right" : "left"
txt := n[2], h.Push([align,txt])
} Else
h.Push(["",txt])
}
} Else If (A_Index = 2) {
For i, t in c {
align := "left" ; column alignment
If RegExMatch(t,"^(:)?\-+(:)?$",&n)
align := (n[1]&&n[2]) ? "center" : (n[2]) ? "right" : "left"
b.Push(align)
body .= '<th align="' (h[i][1]?h[i][1]:'center') '">' h[i][2] '</th>'
}
} Else {
For i, t in c
body .= '<td align="' b[i] '">' Trim(inline_code(t)," `t") '</td>'
}
body .= "</tr>"
}
body .= "</table>"
Continue
}
}
; ordered and unordered lists
list_rgx := '^( *)' ; leading spaces (no tabs)
. '([\*\+\-]|\d+(?:\.|\x29))' ; */+/- or 1. or 1)
. '( +)' ; at least one more space
. '(.+)' ; list content
list := []
While RegExMatch(line,list_rgx,&n) {
itm := LT_spec(n[2]) ; bullet item ... [ -, *, +, 1., or 1) ]
tag := LT_tag(n[2]) ; ol or ul
pre := n.Len[1] ; spaces before bullet item
lead := pre + n.Len[2] + n.Len[3] ; # chars before actual list text
txt := n[4]
While RegExMatch(txt,"\\$") && (i < a.Length) ; append lines ending in '\'
txt := SubStr(txt,1,-1) '<br>' strip_comment(a[++i])
list.Push({itm:t, tag:tag, pre:pre, lead:lead, txt:txt, line:n[2] ' ' txt})
If !line_inc()
Break
}
d := 1 ; depth - for make_list()
err := false ; checking for poorly formatted ordered lists
While list.Length { ; add all lists, normally is one, but can be multiple
body .= '`r`n' make_list(list)
If err
Break
Continue
}
If list.Length { ; if no errs in list, then list array should be blank at this point
body .= '`r`n' AtoT(list) ; dump remaining plain text
Continue
}
; =======================================================================
; ...
; =======================================================================
If RegExMatch(md_type,"^(ol|ul)") { ; ordered/unordered lists
body .= (body?"`r`n":"") inline_code(line)
Continue
}
body .= (body?"`r`n":"") "<p>" inline_code(line) "</p>"
}
; processing toc ; try to process exact height
final_toc := "", toc_width := 0, toc_height := 0
If (Final && do_toc) {
temp := Gui()
temp.SetFont("s" options.font_size, options.font_name)
depth := toc[1][1]
diff := (depth > 1) ? depth - 1 : 0
indent := " "
For i, item in toc { ; 1=depth, 2=title, 3=id
depth := item[1] - diff - 1
ctl := temp.Add("Text",, rpt(" ",depth) "• " item[2])
ctl.GetPos(,,&w, &h)
toc_width := (w > toc_width) ? w : toc_width
toc_height += options.font_size * 2
final_toc .= (final_toc?"`r`n":"") '<a href="#' item[3] '">'
. '<div class="toc-item">' (depth?rpt(indent,depth):"")
. "• " item[2] "</div></a>"
}
temp.Destroy()
}
; processing navigation menu
nav_str := ""
If (final && do_nav) {
temp := Gui()
temp.SetFont("s" options.font_size, options.font_name)
Loop nav_arr.Length {
title := SubStr((txt := nav_arr[A_Index]), 1, (sep := InStr(txt, "=")) - 1)
ctl := temp.Add("Text",,title)
ctl.GetPos(,,&w)
toc_width := (w > toc_width) ? w : toc_width
toc_height += options.font_size * 2
nav_str .= (final_toc?"`r`n":"") '<a href="' SubStr(txt, sep+1) '" target="_blank" rel="noopener noreferrer">'
. '<div class="toc-item">' title '</div></a>'
}
(do_toc) ? nav_str .= "<hr>" : ""
temp.Destroy()
}
; processing TOC
user_menu := ""
If Final && (do_nav || do_toc)
user_menu := toc_html1 nav_str final_toc toc_html2
If final {
If (do_nav && do_toc)
toc_height += Round(options.font_size * Float(options.line_height)) ; multiply by body line-height
css := StrReplace(css, "[_toc_width_]",toc_width + 25) ; account for scrollbar width
css := StrReplace(css, "[_toc_height_]",Round(toc_height))
css := StrReplace(css, "[_font_name_]", options.font_name)
css := StrReplace(css, "[_font_size_]", options.font_size)
css := StrReplace(css, "[_font_weight_]", options.font_weight)
css := StrReplace(css, "[_line_height_]", Round(options.line_height,1))
If (do_toc || do_nav)
result := html1 . css . html2 . user_menu . html3 . body . html4
Else
result := html1 . css . html2 . html3 . body . html4
} Else
result := body
return result
; =======================================================================
; Local Functions
; =======================================================================
; GitHub spec for lists:
; https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#lists
make_list(_L_) { ; o props = {itm, tag, pre, lead, txt}
_tag := _L_[1].tag, _itm := _L_[1].itm
_pre := _L_[1].pre, _lead := _L_[1].lead, t := ""
_txt := inline_code(_L_[1].txt) ; process escapes first line of list to determine optional list style
rgx := '\x5B *(?:type=([1AaIi]|disc|circle|square|none)) *\x5D$'
If (_typ := RegExMatch(_txt,rgx,&y) ? y[1] : '') ; if list style found ...
_L_[1].txt := RegExReplace(_L_[1].txt,rgx) ; ... remove it after recording it
If (_tag = 'ol')
t := (_typ) ? (' type="' _typ '"') : (' type="' ((d=1) ? '1' : (d=2) ? 'i' : 'a') '"')
Else
t := (_typ) ? (' style="list-style-type:' _typ ';"') : ''
list_html := '<' _L_[1].tag t '>' ; GitHub list levels ... 1. > i. > a.
end_tag := '</' _L_[1].tag '>'
_i := 0
While (_L_.Length) {
o := _L_[1]
If (o.pre >= _lead) { ; step in on proper indent (check GitHub spec) o.pre != _pre
d++ ; increase depth
If (r:=make_list(_L_)) && err ; if ordered list isn't properly numbered return only the 'good' part of the list
return list_html '`r`n' end_tag ; ... and quit parsing
list_html .= r
Continue
} Else If (o.pre < _pre) { ; stepping back
d-- ; decrease depth
return '`r`n' list_html '`r`n' end_tag
} Else If (o.tag != _tag) ; if changing unordered list types ...
|| (o.tag="ul" && o.itm != _itm) { ; ... or if next bullet type (*, +, -) doesn't match previous
d := 1 ; reset depth for new list
return '`r`n' list_html '`r`n' end_tag ; ... this starts a new list, according to GitHub spec
}
_i++
If ( o.tag = 'ol' && _i != Integer(o.itm) ) { ; if ordered list numbers are not in sequence ...
err := true ; ... flag err and return the 'good' part of the list
return '`r`n' list_html '`r`n' end_tag
}
list_html .= '`r`n<li>' inline_code(o.txt) '</li>'
_tag := o.tag, _itm := o.itm
_pre := o.pre, _lead := o.lead
_L_.RemoveAt(1)
}
list_html .= '`r`n' end_tag
return list_html
}
AtoT(_a_) { ; for dumping the remaining text of a poorly formated list
_txt_ := '<p>'
For i, o in _a_
_txt_ .= ((i>1)?'<br>':'') o.line
return _txt_ '</p>'
}
LT_tag(_in_) => IsInteger(t:=Trim(_in_,".)")) ? "ol" : IsAlpha(t) ? "" : "ul" ; list type
LT_spec(_in_) => IsInteger(t:=Trim(_in_,".)")) ? Integer(t) : t
inline_code(_in) {
output := _in, check := ""
While (check != output) { ; repeat until no changes are made
check := output
; inline code
While RegExMatch(output, "``(.+?)``", &x) {
If RegExMatch(x[1],"^\#[\da-fA-F]{6,6}$")
|| RegExMatch(x[1],"^rgb\(\d{1,3}, *\d{1,3}, *\d{1,3}\)$")
|| RegExMatch(x[1],"^hsl\(\d{1,3}, *\d{1,3}%, *\d{1,3}%\)$") {
output := '<code>' x[1] ' <span class="circle" style="background-color: ' x[1] ';'
. ' width: ' (options.font_size//2) 'px;'
. ' height: ' (options.font_size//2) 'px;'
. ' display: inline-block;'
. ' border: 2px solid ' x[1] ';'
. ' border-radius: 50%;"></span></code>'
} Else If !IsInCode()
output := StrReplace(output, x[0], "<code>" convert(x[1]) "</code>",,,1)
}
; escape characters
While RegExMatch(output,"(\\)(.)",&x)
output := StrReplace(output,x[0],"&#" Ord(x[2]) ";")
; image
While RegExMatch(output, "!\x5B *([^\x5D]*) *\x5D\x28 *([^\x29]+) *\x29(?:\x28 *([^\x29]+) *\x29)?", &x) && !IsInCode() {
dims := (dm:=Trim(x[3],"()")) ? " " dm : ""
output := StrReplace(output, x[0], '<img src="' x[2] '"' dims ' alt="' x[1] '" title="' x[1] '">',,,1)
}
; image reference-style
While RegExMatch(output, "!\x5B *([^\x5D]*) *\x5D\x5B *([^\x5D]+) *\x5D(?:\x28 *([^\x29]+) *\x29)?", &x)
&& ref.Has(x[2]) ; ref link stored
&& !IsInCode() {
dims := x[3] ? " " x[3] : ""
output := StrReplace(output, x[0], '<img src="' ref[x[2]].link '"' dims ' alt="' x[1] '" title="' ref[x[2]].title '">',,,1)
}
; link / url
While RegExMatch(output, "\x5B *([^\x5D]+) *\x5D\x28 *([^\x29]+) *\x29", &x) && !IsInCode() {
rel := RegExMatch(x[2],"^#[\w\-]+") ? "" : 'noopener noreferrer'
tgt := RegExMatch(x[2],"^#[\w\-]+") ? "" : '_blank'
output := StrReplace(output, x[0], '<a href="' x[2] '" target="" rel="noopener noreferrer">' x[1] "</a>",,,1)
}
; link / url reference-style 1
While RegExMatch(output, "\x5B *([^\x5D]+) *\x5D\x5B *([^\x5D]+) *\x5D", &x)
&& ref.Has(x[2])
&& !IsInCode() {
; rel :=
output := StrReplace(output, x[0]
, '<a href="' ref[x[2]].link '" title="' ref[x[2]].title '" target="_blank" rel="noopener noreferrer">' x[1] "</a>",,,1)
}
; link / url reference-style 2
While RegExMatch(output, "\x5B *([^\x5D]+) *\x5D", &x)
&& ref.Has(x[1])
&& !IsInCode()
output := StrReplace(output, x[0]
, '<a href="' ref[x[1]].link '" title="' ref[x[1]].title '" target="_blank" rel="noopener noreferrer">'
. (ref[x[1]].title?ref[x[1]].title:x[1]) "</a>",,,1)
; strong + emphasis (bold + italics)
While (RegExMatch(output, "(?<![\*\w])[\*]{3,3}([^\*]+)[\*]{3,3}", &x)
|| RegExMatch(output, "(?<!\w)[\_]{3,3}([^\_]+)[\_]{3,3}", &x)) && !IsInCode() {
output := StrReplace(output, x[0], "<em><strong>" x[1] "</strong></em>",,,1)
}
; strong (bold)
While (RegExMatch(output, "(?<![\*\w])[\*]{2,2}([^\*]+)[\*]{2,2}", &x)
|| RegExMatch(output, "(?<!\w)[\_]{2,2}([^\_]+)[\_]{2,2}", &x)) && !IsInCode() {
output := StrReplace(output, x[0], "<strong>" x[1] "</strong>",,,1)
}
; emphasis (italics)
While (RegExMatch(output, "(?<![\*\w])[\*]{1,1}([^\*]+)[\*]{1,1}", &x)
|| RegExMatch(output, "(?<![\w])[\_]{1,1}([^\_]+)[\_]{1,1}", &x)) && !IsInCode() {
output := StrReplace(output, x[0], "<em>" x[1] "</em>",,,1)
}
; strikethrough
While RegExMatch(output, "(?<!\w)~{2,2}([^~]+)~{2,2}", &x) && !IsInCode()
output := StrReplace(output, x[0], "<del>" x[1] "</del>",,,1)
}
return output
IsInCode() => ((st := x.Pos[0]-6) < 1) ? false : RegExMatch(output,"<code> *\Q" x[0] "\E",,st) ? true : false
}
line_inc(concat:="") {
(i < a.Length) ? (line := (concat?concat:"") strip_comment(a[++i]), result:=true) : (line := "", result:=false)
return result
}
strip_comment(_in_) => RTrim(RegExReplace(_in_,"^(.+)<\!\-\-[^>]+\-\->","$1")," `t")
convert(_in_) { ; convert markup chars so they don't get recognized, a forced kind of escaping in certain contexts
output := _in_
For i, v in ["&","<",">","\","*","_","-","=","~","``","[","]","(",")","!","{","}"]
output := StrReplace(output,v,"&#" Ord(v) ";")
return output
}
rpt(x,y) => StrReplace(Format("{:-" y "}","")," ",x) ; string repeat ... x=str, y=iterations
}