FUNCTION_BLOCK SMC_NCTokenizer
Reads a CNC program from an SMC_ITextStream and converts it into a SMC_TokenQueue of SMC_Token, which ultimately will be processed by SMC_ReadNCTokens. Delimiters for tokens of type string, comment and variable can be reconfigured using the method SMC_NCTokenizer.SetDelimiters.
InOut:
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Scope |
Name |
Type |
Initial |
Comment |
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Input |
bExecute |
BOOL |
Rising edge: Starts operation. While TRUE, the function block is active. |
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stream |
Stream to read the CNC program from; e.g. might be a file stream |
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paTokensBuffer |
POINTER TO ARRAY [0..0] OF SMC_Token |
Buffer for SMC_TokenQueue |
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udiTokensBufferSize |
UDINT |
Length of buffer for SMC_TokenQueue |
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bEnableSyntaxChecks |
BOOL |
Report an error in case of syntax error, if TRUE Skips the erroneous token, if FALSE |
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bResetDelimiterConfig |
BOOL |
TRUE |
If TRUE the delimiters set via SetDelimiters will be overwritten with defaults with rising edge at Execute. If you already configured an alternative delimiters configuration before, you might want to set this to FALSE int order to keep it. |
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Output |
bDone |
BOOL |
TRUE: The input stream has been processed completely. |
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bBusy |
BOOL |
FALSE: The FB hasn't finished processing the input stream yet. |
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bError |
BOOL |
TRUE: An error occured. ErrorID provides additional information. |
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ErrorID |
SMC_ERROR |
In case of normal operation SMC_Error.SMC_NO_ERROR, otherwise the ID of the occured error. |
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tokens |
Tokens queue generated from the input stream |
