It is now possible (again?) to read from a list of connections (@bairdj, #514).
Internal change for compatibility with cpp11 >= 0.4.6 (@DavisVaughan, #512).
str() now works in a colorized context in the presence of a column of class integer64, i.e. parsed with col_big_integer() (@bart1, #477).
The embedded implementation of the Grisu algorithm for printing floating point numbers now uses snprintf() instead of sprintf() and likewise for vroom’s own code (@jeroen, #480).
vroom(col_select=) now handles column selection by numeric position when id column is provided (#455).
vroom(id = "path", col_select = a:c) is treated like vroom(id = "path", col_select = c(path, a:c)). If an id column is provided, it is automatically included in the output (#416).
vroom_write(append = TRUE) does not modify an existing file when appending an empty data frame. In particular, it does not overwrite (delete) the existing contents of that file (https://github.com/tidyverse/readr/issues/1408, #451).
vroom::problems() now defaults to .Last.value for its primary input, similar to how readr::problems() works (#443).
The warning that indicates the existence of parsing problems has been improved, which should make it easier for the user to follow-up (https://github.com/tidyverse/readr/issues/1322).
vroom() reads more reliably from filepaths containing non-ascii characters, in a non-UTF-8 locale (#394, #438).
vroom_format() and vroom_write() only quote values that contain a delimiter, quote, or newline. Specifically values that are equal to the na string (or that start with it) are no longer quoted (#426).
Fixed segfault when reading in multiple files and the first file has only a header row of column names, but subsequent files have at least one row (#430).
Fixed segfault when vroom_format() is given an empty data frame (#425)
Fixed a segfault that could occur when the final field of the final line is missing and the file also does not end in a newline (#429).
Fixed recursive garbage collection error that could occur during vroom_write() when output_column() generates an ALTREP vector (#389).
vroom_progress() uses rlang::is_interactive() instead of base::interactive().
col_factor(levels = NULL) honors the na strings of vroom() and its own include_na argument, as described in the docs, and now reproduces the behaviour of readr’s first edition parser (#396).
Jenny Bryan is now the official maintainer.
Fix uninitialized bool detected by CRAN’s UBSAN check (https://github.com/tidyverse/vroom/pull/386)
Fix buffer overflow when trying to parse an integer field that is over 64 characters long (https://github.com/tidyverse/readr/issues/1326)
Fix subset indexing when indexes span a file boundary multiple times (#383)
vroom(col_select=) now works if col_names = FALSE as intended (#381)
vroom(n_max=) now correctly handles cases when reading from a connection and the file does not end with a newline (https://github.com/tidyverse/readr/issues/1321)
vroom() no longer issues a spurious warning when the parsing needs to be restarted due to the presence of embedded newlines (https://github.com/tidyverse/readr/issues/1313)Fix performance issue when materializing subsetted vectors (#378)
vroom_format() now uses the same internal multi-threaded code as vroom_write(), improving its performance in most cases (#377)
vroom_fwf() no longer omits the last line if it does not end with a newline (https://github.com/tidyverse/readr/issues/1293)
Empty files or files with only a header line and no data no longer cause a crash if read with multiple files (https://github.com/tidyverse/readr/issues/1297)
Files with a header but no contents, or a empty file if col_names = FALSE no longer cause a hang when progress = TRUE (https://github.com/tidyverse/readr/issues/1297)
Commented lines with comments at the end of lines no longer hang R (https://github.com/tidyverse/readr/issues/1309)
Comment lines containing unpaired quotes are no longer treated as unterminated quotations (https://github.com/tidyverse/readr/issues/1307)
Values with only a Inf or NaN prefix but additional data afterwards, like Inform or no longer inappropriately guessed as doubles (https://github.com/tidyverse/readr/issues/1319)
Time types now support %h format to denote hour durations greater than 24, like readr (https://github.com/tidyverse/readr/issues/1312)
Fix performance issue when materializing subsetted vectors (#378)
vroom() now supports files with only carriage return newlines (\r). (#360, https://github.com/tidyverse/readr/issues/1236)
vroom() now parses single digit datetimes more consistently as readr has done (https://github.com/tidyverse/readr/issues/1276)
vroom() now parses Inf values as doubles (https://github.com/tidyverse/readr/issues/1283)
vroom() now parses NaN values as doubles (https://github.com/tidyverse/readr/issues/1277)
VROOM_CONNECTION_SIZE is now parsed as a double, which supports scientific notation (#364)
vroom() now works around specifying a \n as the delimiter (#365, https://github.com/tidyverse/dplyr/issues/5977)
vroom() no longer crashes if given a col_name and col_type both less than the number of columns (https://github.com/tidyverse/readr/issues/1271)
vroom() no longer hangs if given an empty value for locale(grouping_mark=) (https://github.com/tidyverse/readr/issues/1241)
Fix performance regression when guessing with large numbers of rows (https://github.com/tidyverse/readr/issues/1267)
vroom(col_types=) now accepts column type names like those accepted by utils::read.table. e.g. vroom::vroom(col_types = list(a = “integer”, b = “double”, c = “skip”))
vroom() now respects the quote parameter properly in the first two lines of the file (https://github.com/tidyverse/readr/issues/1262)
vroom_write() now always correctly writes its output including column names in UTF-8 (https://github.com/tidyverse/readr/issues/1242)
vroom_write() now creates an empty file when given a input without any columns (https://github.com/tidyverse/readr/issues/1234)
vroom(col_types=) now truncates the column types if the user passes too many types. (#355)
vroom() now always includes the last row when guessing (#352)
vroom(trim_ws = TRUE) now trims field content within quotes as well as without (#354). Previously vroom explicitly retained field content inside quotes regardless of the value of trim_ws.
vroom() now supports inputs with unnamed column types that are less than the number of columns (#296)
vroom() now outputs the correct column names even in the presence of skipped columns (#293, tidyverse/readr#1215)
vroom_fwf(n_max=) now works as intended when the input is a connection.
vroom() and vroom_write() now automatically detect the compression format regardless of the file extension for bzip2, xzip, gzip and zip files (#348)
vroom() and vroom_write() now automatically support many more archive formats thanks to the archive package. These include new support for writing zip files, reading and writing 7zip, tar and ISO files.
vroom(num_threads = 1) will now not spawn any threads. This can be used on as a workaround on systems without full thread support.
Threads are now automatically disabled on non-macOS systems compiling against clang’s libc++. Most systems non-macOS systems use the more common gcc libstdc++, so this should not effect most users.
Parsers now treat NA values as NA even if they are valid values for the types (#342)
Element-wise indexing into lazy (ALTREP) vectors now has much less overhead (#344)
New vroom(show_col_types=) argument to more simply control when column types are shown.
vroom(), vroom_fwf() and vroom_lines() now support multi-byte encodings such as UTF-16 and UTF-32 by converting these files to UTF-8 under the hood (#138)
vroom() now supports skipping comments and blank lines within data, not just at the start of the file (#294, #302)
vroom() now uses the tzdb package when parsing date-times (@DavisVaughan, #273)
vroom() now emits a warning of class vroom_parse_issue if there are non-fatal parsing issues.
vroom() now emits a warning of class vroom_mismatched_column_name if the user supplies a column type that does not match the name of a read column (#317).
The vroom package now uses the MIT license, as part of systematic relicensing throughout the r-lib and tidyverse packages (#323)
`vroom() correctly reads double values with comma as decimal separator (@kent37 #313)
vroom() now correctly skips lines with only one quote if the format doesn’t use quoting (https://github.com/tidyverse/readr/issues/991#issuecomment-616378446)
vroom() and vroom_lines() now handle files with mixed windows and POSIX line endings (https://github.com/tidyverse/readr/issues/1210)
vroom() now outputs a tibble with the expected number of columns and types based on col_types and col_names even if the file is empty (#297).
vroom() no longer mis-indexes files read from connections with windows line endings when the two line endings falls on separate sides of the read buffer (#331)
vroom() no longer crashes if n_max = 0 and col_names is a character (#316)
vroom() now preserves the spec attribute when vroom and readr are both loaded (#303)
vroom() now allows specifying column names in col_types that have been repaired (#311)
vroom() no longer inadvertently calls .name_repair functions twice (#310).
vroom() is now more robust to quoting issues when tracking the CSV state (#301)
vroom() now registers the S3 class with methods::setOldClass() (r-dbi/DBI#345)
col_datetime() now supports ‘%s’ format, which represents decimal seconds since the Unix epoch.
col_numeric() now supports grouping_mark and decimal_mark that are unicode characters, such as U+00A0 which is commonly used as the grouping mark for numbers in France (https://github.com/tidyverse/readr/issues/796).
vroom_fwf() gains a skip_empty_rows argument to skip empty lines (https://github.com/tidyverse/readr/issues/1211)
vroom_fwf() now respects n_max, as intended (#334)
vroom_lines() gains a na argument.
vroom_write_lines() no longer escapes or quotes lines.
vroom_write_lines() now works as intended (#291).
vroom_write(path=) has been deprecated, in favor of file, to match readr.
vroom_write_lines() now exposes the num_threads argument.
problems() now prints the correct row number of parse errors (#326)
problems() now throws a more informative error if called on a readr object (#308).
problems() now de-duplicates identical problems (#318)
Fix an inadvertent performance regression when reading values (#309)
n_max argument is correctly respected in edge cases (#306)
factors with implicit levels now work when fields are quoted, as intended (#330)
Guessing double types no longer unconditionally ignores leading whitespace. Now whitespace is only ignored when trim_ws is set.
vroom now tracks indexing and parsing errors like readr. The first time an issue is encountered a warning will be signaled. A tibble of all found problems can be retrieved with vroom::problems(). (#247)
Data with newlines within quoted fields will now automatically revert to using a single thread and be properly read (#282)
NUL values in character data are now permitted, with a warning.
New vroom_write_lines() function to write a character vector to a file (#291)
vroom_write() gains a eol= parameter to specify the end of line character(s) to use. Use vroom_write(eol = "\r\n") to write a file with Windows style newlines (#263).
Datetime formats used when guessing now match those used when parsing (#240)
Quotes are now only valid next to newlines or delimiters (#224)
vroom() now signals an R error for invalid date and datetime formats, instead of crashing the session (#220).
vroom(comment = ) now accepts multi-character comments (#286)
vroom_lines() now works with empty files (#285)
Vectors are now subset properly when given invalid subscripts (#283)
vroom_write() now works when the delimiter is empty, e.g. delim = "" (#287).
vroom_write() now works with all ALTREP vectors, including string vectors (#270)
An internal call to new.env() now correctly uses the parent argument (#281)
Test failures on R 4.1 related to factors with NA values fixed (#262)
vroom() now works without error with readr versions of col specs (#256, #264, #266)
Test failures on R 4.1 related to POSIXct classes fixed (#260)
Column subsetting with double indexes now works again (#257)
vroom(n_max=) now only partially downloads files from connections, as intended (#259)
The Rcpp dependency has been removed in favor of cpp11.
vroom() now handles cases when id is set and a column in skipped (#237)
vroom() now supports column selections when there are some empty column names (#238)
vroom() argument n_max now works properly for files with windows newlines and no final newline (#244)
Subsetting vectors now works with View() in RStudio if there are now rows to subset (#253).
Subsetting datetime columns now works with NA indices (#236).
vroom() now writes the column names if given an input with no rows (#213)
vroom() columns now support indexing with NA values (#201)
vroom() no longer truncates the last value in a file if the file contains windows newlines but no final newline (#219).
vroom() now works when the na argument is encoded in non ASCII or UTF-8 locales and the file encoding is not the same as the native encoding (#233).
vroom_fwf() now verifies that the positions are valid, namely that the begin value is always less than the previous end (#217).
vroom_lines() gains a locale argument so you can control the encoding of the file (#218)
vroom_write() now supports the append argument with R connections (#232)
vroom_altrep_opts() and the argument vroom(altrep_opts =) have been renamed to vroom_altrep() and altrep respectively. The prior names have been deprecated.vroom() now supports reading Big Integer values with the bit64 package. Use col_big_integer() or the “I” shortcut to read a column as big integers. (#198)
cols() gains a .delim argument and vroom() now uses it as the delimiter if it is provided (#192)
vroom() now supports reading from stdin() directly, interpreted as the C-level standard input (#106).
col_date now parses single digit month and day (@edzer, #123, #170)
fwf_empty() now uses the skip parameter, as intended.
vroom() can now read single line files without a terminal newline (#173).
vroom() can now select the id column if provided (#110).
vroom() now correctly copies string data for factor levels (#184)
vroom() no longer crashes when files have trailing fields, windows newlines and the file is not newline or null terminated.
vroom() now includes a spec object with the col_types class, as intended.
vroom() now better handles floating point values with very large exponents (#164).
vroom() now uses better heuristics to guess the delimiter and now throws an error if a delimiter cannot be guessed (#126, #141, #167).
vroom() now has an improved error message when a file does not exist (#169).
vroom() no longer leaks file handles (#177, #180)
vroom() now outputs its messages on stdout() rather than stderr(), which avoids the text being red in RStudio and in the Windows GUI.
vroom() no longer overflows when reading files with more than 2B entries (@wlattner, #183).
vroom_fwf() is now more robust if not all lines are the expected length (#78)
vroom_fwf() and fwf_empty() now support passing Inf to guess_max().
vroom_str() now works with S4 objects.
vroom_fwf() now handles files with dos newlines properly.
vroom_write() now does not try to write anything when given empty inputs (#172).
Dates, times, and datetimes now properly consider the locale when parsing.
Added benchmarks with wide data for both numeric and character data (#87, @R3myG)
The delimiter used for parsing is now shown in the message output (#95 @R3myG)
id is now stored as an run length encoded Altrep vector, which uses less memory and is much faster for large inputs. (#111)vroom_lines() now properly respects the n_max parameter (#142)
vroom() and vroom_lines() now support reading files which do not end in newlines by using a file connection (#40).
vroom_write() now works with the standard output connection stdout() (#106).
vroom_write() no longer crashes non-deterministically when used on Altrep vectors.
The integer parser now returns NA values for invalid inputs (#135)
Fix additional UBSAN issue in the mio project reported by CRAN (#97)
Fix indexing into connections with quoted fields (#119)
Move example files for vroom() out of \dontshow{}.
Fix integer overflow with very large files (#116, #119)
Fix missing columns and windows newlines (#114)
Fix encoding of column names (#113, #115)
Throw an error message when writing a zip file, which is not supported (@metaOO, #145)
Default message output from vroom() now uses Rows and Cols (@meta00, #140)
vroom_lines() function added, to (lazily) read lines from a file into a character vector (#90).Fix for a hang on Windows caused by a race condition in the progress bar (#98)
Remove accidental runtime dependency on testthat (#104)
Fix to actually return non-Altrep character columns on R 3.2, 3.3 and 3.4.
Disable colors in the progress bar when running in RStudio, to work around an issue where the progress bar would be garbled (https://github.com/rstudio/rstudio/issues/4777)
Fix for UBSAN issues reported by CRAN (#97)
Fix for rchk issues reported by CRAN (#94)
The progress bar now only updates every 10 milliseconds.
Getting started vignette index entry now more informative (#92)
Initial release
Added a NEWS.md file to track changes to the package.