Commit graph

17 commits

Author SHA1 Message Date
John Kerl
9f5a11f707
New --lazy-quotes flag for helping with malformed CSV (#925)
* Lazy-quotes option for CSV parser

* doc-build artifacts

* test cases

* doc-proofreads
2022-02-06 01:05:35 -05:00
John Kerl
66c4a077fd
Make TSV finally true TSV (#923)
* Spec-TSV

* doc mods; more test cases
2022-02-06 00:13:55 -05:00
Stephen Kitt
d536318ed6
Use int64 wherever "64-bit integer" is assumed (#902)
Miller assumes 64-bit integers, but in Go, the int type varies in size
depending on the architecture: 32-bit architectures have int
equivalent to int32. As a result, the supported range of integer
values is greatly reduced on 32-bit architectures compared to what is
suggested by the documentation.

This patch explicitly uses int64 wherever 64-bit integers are
assumed.

Test cases affected by the behaviour of the random generator are
updated to reflect the new values (the existing seed doesn't produce
the same behaviour since the way random values are generated has
changed).

Signed-off-by: Stephen Kitt <steve@sk2.org>
2022-01-27 12:06:25 -05:00
John Kerl
0c75713b94
Fix codespell config to skip multiple files (#837)
* trying to get codespell to trigger before merge to main

* iterating

* https://github.com/codespell-project/actions-codespell

* iterating

* iterating

* iterating

* iterating

* iterating

* more

* more

* more
2022-01-03 23:16:43 -05:00
John Kerl
a977617797
Address some staticcheck issues (#823)
* address some staticcheck issues

* address some staticcheck issues

* address some staticcheck issues

* address some staticcheck issues
2022-01-01 14:28:19 -05:00
John Kerl
e10fee0724
Improve type-inference performance (#809)
* To-do items for broader platform/go-version benchmarking

* neaten inferrer API

* extend type-inference unit-test cases

* Add benchmark scripts for comparing compiler versions

* mlr version in addition to mlr --version

* some go-benchmark files for Mac/Linux perf comparisons

* neaten perf-scripts

* merge

* type-scan optimization tests

* type-scan optimization infra

* test new inferrer

* mlr --time option

* include --cpuprofile and --traceprofile in on-line help

* sharpen inferred/deferred-type API distinction

* replace old inferrer with newer/faster

* update docs for new type-inferrer
2021-12-27 00:54:21 -05:00
John Kerl
096bb9bc12
Make --ifs-regex and --ips-regex explicit command-line flags (#799)
* Function-pointerize IXS/IXSRegex to reduce runtime iffelsing

* remove IsRegexString and SuppressIXSRegex

* regression tests passing

* doc updates
2021-12-25 00:00:18 -05:00
John Kerl
157e567909
Dedupe field names by default (#794) 2021-12-22 21:07:29 -05:00
John Kerl
6b87a121b0 Copy-reduction in CSV/CSV-lite record-readers; very minor perf improvement 2021-12-22 20:01:16 -05:00
John Kerl
7a97c9b868
Performance improvement by JIT type inference (#786)
* JIT mlrval type-interfence: mlrval package

* mlrmap refactor

* complete merge from #779

* iterating

* mlrval/format.go

* mlrval/copy.go

* bifs/arithmetic_test.go

* iterate on bifs/collections_test.go

* mlrval_cmp.go

* mlrval JSON iterate

* iterate applying mlrval refactors to dependent packages

* first clean compile in a long while on this branch

* results of first post-compile profiling

* testing

* bugfix in ofmt formatting

* bugfix in octal-supporess

* go fmt

* neaten

* regression tests all passing
2021-12-20 23:56:04 -05:00
John Kerl
f233923351
Performance improvement: record-batching (#779)
* Rename inputChannel,outputChannel to readerChannel,writerChannel

* Rename inputChannel,outputChannel to readerChannel,writerChannel (#772)

* Start batched-reader API mods

* Singleton-list step for reader-batching at input

* CLI options for records-per-batch and hash-records

* Push channelized-reader logic into DKVP reader

* Push batching logic into chain-transformer, transformers, and channel-writer

* foo

* cmd/mprof and cmd/mprof2

* cmd/mprof3 and cmd/mprof4

* narrowed in on regexp-splitting on IFS/IPS as perf-hit

* neaten

* channelize nidx

* cmd/mprof5

* channelize CSV reader

* channelize NIDX reader

* Dedupe DKVP-reader and NIDX-reader source files

* channelize CSV-lite reader

* channelize XTAB reader

* batchify JSON reader

* channelize GEN pseudo-reader

* scripts for perf-testing on larger files

* merge with main for #776

* Fix record-batching for join and repl

* Fix comment-handling in channelized XTAB reader

* Fix bug found in positional-rename
2021-12-13 00:57:52 -05:00
John Kerl
7c9cc61ac9
Fix issue with pipe or dot as IFS for DKVP/NIDX/CSV-lite (#778) 2021-12-12 23:25:16 -05:00
John Kerl
107ab5c4c9
Performance improvement for CSV-lite and DKVP (#774)
* Clarify build-from-source steps

* Performance improvement for CSV-lite and DKVP
2021-12-08 22:47:53 -05:00
John Kerl
4ddb8ff25c Rename inputChannel,outputChannel to readerChannel,writerChannel (#772) 2021-12-07 08:02:30 -05:00
John Kerl
a73089be20 mlr --csv --irs/--ors crlf is OK, sine autodetected per platform 2021-11-17 23:39:16 -05:00
John Kerl
bc72cd1857
More Go-package restructuring (#748) 2021-11-12 12:49:55 -05:00
John Kerl
e2b6ec2391
Standardize Go-package structure (#746) 2021-11-11 14:15:13 -05:00