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< > BotCompany Repo | #1030435 // html_evaluateIfTags

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (2796L/18K).

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// pred receives the params of opening tag as string (e.g. <if $bla> => "$bla")
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sS html_evaluateIfTags(S html, IPred<S> pred) {
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  LS tok = htmlTok(html);
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  bool anyChange;
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  while ping (true) {
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    LS ifTag = first(findContainerTag(tok, "if"));
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    if (ifTag == null) break;
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    set anyChange;
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    int iElse = indexOfIC(ifTag, "<else>");
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    bool val = pred.get(htmlTagFullParamString(second(ifTag)));
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    if (val) {
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      // value is true, drop else branch (if there)
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      if (iElse >= 0)
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        clearTokens(ifTag, iElse, l(ifTag)-2);
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    } else {
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      // value is false, drop everything up until <else> (or whole thing)
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      clearTokens(ifTag, 2, iElse < 0 ? l(ifTag) - 2 : iElse+1);
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    }
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    // clear opening and closing tag
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    clearToken(ifTag, 1);
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    clearToken(ifTag, l(ifTag)-2);
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  }
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  ret anyChange ? join(tok) : html;
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}      

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Snippet ID: #1030435
Snippet name: html_evaluateIfTags
Eternal ID of this version: #1030435/7
Text MD5: 9b2c8433f51609de62e6a3e238d9c77f
Transpilation MD5: b397c7bc63e9f5a80dd6454160f6c4ca
Author: stefan
Category: javax / html
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2020-12-16 23:39:04
Source code size: 878 bytes / 26 lines
Pitched / IR pitched: No / No
Views / Downloads: 135 / 203
Version history: 6 change(s)
Referenced in: [show references]