Version_changes.md

1.4

• Added example for NF value when input line doesn't contain the input field separator or if it is empty.
• Added example which uses both nextfile and ENDFILE.
• Added example for working with floating-point numbers according to locale formatting.
• Clarified use of \0 with gensub function.
• Updated error message for file not found.
• Added further reading links for regexp metacharacter escaping and NR==FNR alternatives.

1.3

• Added note regarding use of NR==FNR if the first file is empty
• Added note for split function when the field separator is the same as default FS
• Simplified one of the examples for paragraph mode
  • Updated exercise solutions as well for this usecase
• Updated timing data for speed comparison examples, added mawk results as well
• Corrected various typos, improved descriptions, comments, external links, etc

1.2

• Added link to exercise solutions
• Corrected typo in a solution
• Two of the buffer examples simplified
• Corrected line anchor explanations to be referred as string anchor instead

1.1

• Clarified BRE vs ERE difference for line anchor escaping
• Added workaround for epub version for iBooks
• For more detailed view of changes, see the commit changes for the markdown source file

1.0

• Added exercises
• GNU awk version updated to 5.1.0
• Role of IGNORECASE for FS, FPAT and RS
• Alternation priority for same length matches
• Using escape sequences for regular expression metacharacters
• Corrected multiline code snippets and added chapter sub-headings for clarity
• Added gotcha for using code in replacement section of substitution functions
• Corrected various typos, improved descriptions/comments/examples/etc
• Added epub version of the book
• For more detailed view of changes, see the commit changes for the markdown source file

0.7

• First version