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# SCPI parser
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This library provides a simple ("KISS") SCPI implementation for embedded devices (instruments).
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The implementation is not 100% complete, but it's sufficient for basic SCPI communication.
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## What's supported
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- The hierarchical header model (commands with colon)
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- Long and short header variants (eg. `SYSTem?`)
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- Easy configuration with one const array of structs and callback functions (see `main.c`)
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- Semicolon for chaining commands on the same level
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- String, Int, Float, Bool arguments
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- Block data argument with callback each N received bytes (configurable)
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- Status Register model
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- Error queue including error messages from the SCPI spec
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- All mandatory SCPI commands (headers) are implemented as built-ins
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Built-in commands can be overriden in user command array.
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See main.c for example of how to use the library.
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## What is missing
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- <s>Setting error type flags in the ESR when error is added to queue</s>
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- <s>There may be some bugs in the status registers (not tested much)</s>
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- <s>Character data argument ("string without quotes", enum-like)</s>
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- Number units and metric suffixes (k,M,G,m,u,n)
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- DEF, MIN, MAX, INF, NINF argument values for numbers
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Support for units and "constants" (DEF etc) in numeric fields will need some larger changes to the numeric parser and `SCPI_argval_t`.
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Feel free to propose a pull request implementing any missing features.
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