[GitHub] [beam] aaltay commented on a change in pull request #11796: [BEAM-10003] Use local code for building code samples on website

[GitBox <gi...@apache.org>]

aaltay commented on a change in pull request #11796:
URL: https://github.com/apache/beam/pull/11796#discussion_r430541307



##########
File path: website/www/site/layouts/shortcodes/code_sample.html
##########
@@ -0,0 +1,15 @@
+{{/*
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+   http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License. See accompanying LICENSE file.
+*/}}
+{{/*
+  This shortcode is used to fetch a piece of code with tags from Beam code.
+  There should be no breaklines here to make sure the string results do not get impacts of newlines.
+*/}}{{ $tag := .Get 1 }}{{ $path := printf "code_samples/%s" (replaceRE "/" "_" (.Get 0)) }}{{ $data := readFile $path }}{{ $matchRegex := printf "%s%s%s%s%s" "\\[START " $tag "]\n[\\s\\S]*?\n.*\\[END " $tag "]" }}{{ $match := index (findRE $matchRegex $data) 0 }}{{ $lines := split $match "\n" }}{{ $lineCount := len $lines }}{{ $cleanedLines := $lines | first (sub $lineCount 1) | last (sub $lineCount 2) }}{{ $firstLine := index $cleanedLines 0 }}{{ $numberOfWhitespaces := index (findRE "^\\s*" $firstLine) 0 | len }}{{ $unindentRegex := printf "%s%d%s" "^\\s{" $numberOfWhitespaces "}" }}{{ $unindentedLines := apply $cleanedLines "replaceRE" $unindentRegex "" "." }}{{ $result := delimit $unindentedLines "\n" }}{{ print $result }}

Review comment:
       What does this part do:
   
   {{ $path := printf "code_samples/%s" (replaceRE "/" "_" (.Get 0)) }}
   
   I have 2 questions. What is this path? And why there is a need to replace / with _




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