83 lines
1.3 KiB
Markdown
83 lines
1.3 KiB
Markdown
# coin
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## Description
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transforms a template string to its refined version by substituting its placeholders with concrete values
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## Building
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### Requirements
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- shell interpreter
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### Instructions
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- execute `tools/build`
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## Installation
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### Requirements
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- shell interpreter
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### Instructions
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- (as `root`) execute `tools/install`
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## Usage
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### Requirements
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- Python 3 interpreter
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### Examples
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#### basic
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```sh
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echo '{{flowers}} are {{color}}' | coin -a 'flowers:roses' -a 'color:red'
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# roses are red
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```
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The same result can be produced by using multiple `coin` calls:
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```sh
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echo '{{flowers}} are {{color}}' | coin -a 'flowers:roses' | coin -a 'color:red'
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```
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In some contextes curly brackets might might be reserved or not available for other reasons. This can be mitigated by using different placeholder indicators:
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```sh
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echo '<<flowers>> are <<color>>' | coin -o '<<' -c '>>' -a 'flowers:roses' -a 'color:red'
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```
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#### file arguments
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```sh
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echo -n "cornflowers" > /tmp/flowers.txt
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echo -n "blue" > /tmp/color.txt
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echo '{{flowers}} are {{color}}' | coin -a 'flowers:@/tmp/flowers.txt' -a 'color:@/tmp/color.txt'
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# cornflowers are blue
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```
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#### data file
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```sh
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echo -e "flowers: daffodills\ncolor: yellow" > /tmp/data.yaml
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echo '{{flowers}} are {{color}}' | coin -d /tmp/data.yaml
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# daffodills are yellow
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```
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