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Fix sexp lexer for escaped sequences such \000 followed by another digit #6710

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merged 2 commits into from
Dec 15, 2022

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@shym shym commented Dec 15, 2022

This PR adds two tests that the sexp lexer for strings errors out on digit escape sequences such as "\0000" and "\x000" and fixes the issue.
I stumbled upon that issue by trying to install a locally-pinned opam package into a switch named “5β2”, which generated a dune-package containing 5\206\1782 which did not parse correctly.

@rgrinberg rgrinberg added this to the 3.7.0 milestone Dec 15, 2022
shym added 2 commits December 15, 2022 16:41
… in strings

The two cases that this modifies are meant to catch the issue of
"unterminated ... escape sequences" but, due to the use of '*', they
also caught the cases where the escape sequence was followed by another
digit

Signed-off-by: Samuel Hym <[email protected]>
@rgrinberg rgrinberg force-pushed the sexp-lexer-long-matches branch from 168af58 to a570b56 Compare December 15, 2022 22:42
@rgrinberg rgrinberg merged commit a237caa into ocaml:main Dec 15, 2022
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Good catch. Thanks

@shym shym deleted the sexp-lexer-long-matches branch December 19, 2022 09:27
emillon added a commit to emillon/opam-repository that referenced this pull request Feb 6, 2023
…, dune-rpc, dune-rpc-lwt, dune-private-libs, dune-glob, dune-configurator, dune-build-info, dune-action-plugin and chrome-trace (3.7.0~alpha1)

CHANGES:

- Fix parsing of OCaml errors that contain code excerpts with `...` in them.
  (ocaml/dune#7008, @rgrinberg)

- Pre-emptively clear screen in watch mode (ocaml/dune#6987, fixes ocaml/dune#6884, @rgrinberg)

- Fix cross compilation configuration when a context with targets is itself a
  host of another context (ocaml/dune#6958, fixes ocaml/dune#6843, @rgrinberg)

- Fix parsing of the `<=` operator in *blang* expressions of `dune` files.
  Previously, the operator would be interpreted as `,`. (ocaml/dune#6928, @tatchi)

- Fix `--trace-file` output. Dune now emits a single *complete* event for every
  executed process. Unterminated *async* events are no longer written. (ocaml/dune#6892,
  @rgrinberg)

- Fix preprocessing with `staged_pps` (ocaml/dune#6748, fixes ocaml/dune#6644, @rgrinberg)

- Use colored output with MDX when Dune colors are enabled.
  (ocaml/dune#6462, @MisterDA)

- Make `dune describe workspace` return consistent dependencies for
  executables and for libraries. By default, compile-time dependencies
  towards PPX-rewriters are from now not taken into account (but
  runtime dependencies always are). Compile-time dependencies towards
  PPX-rewriters can be taken into account by providing the
  `--with-pps` flag. (ocaml/dune#6727, fixes ocaml/dune#6486, @esope)

- Print missing newline after `$ dune exec`. (ocaml/dune#6821, fixes ocaml/dune#6700, @rgrinberg,
  @Alizter)

- Fix binary corruption when installing or promoting in parallel (ocaml/dune#6669, fixes
  ocaml/dune#6668, @edwintorok)

- Use colored output with GCC and Clang when compiling C stubs. The
  flag `-fdiagnostics-color=always` is added to the `:standard` set of
  flags. (ocaml/dune#4083, @MisterDA)

- Fix the parsing of decimal and hexadecimal escape literals in `dune`,
  `dune-package`, and other dune s-expression based files (ocaml/dune#6710, @shym)

- Report an error if `dune init ...` would create a "dune" file in a location
  which already contains a "dune" directory (ocaml/dune#6705, @gridbugs)

- Fix the parsing of alerts. They will now show up in diagnostics correctly.
  (ocaml/dune#6678, @rginberg)

- Fix the compilation of modules generated at link time when
  `implicit_transitive_deps` is enabled (ocaml/dune#6642, @rgrinberg)

- Allow `$ dune utop` to load libraries defined in data only directories
  defined using `(subdir ..)` (ocaml/dune#6631, @rgrinberg)

- Format dune files when they are named `dune-file`. This occurs when we enable
  the alternative file names project option. (ocaml/dune#6566, @rgrinberg)

- Move `$ dune ocaml-merlin -dump-config=$dir` to `$ dune ocaml merlin
  dump-config $dir`. (ocaml/dune#6547, @rgrinberg)

- Allow compilation rules to be impacted by `(env ..)` stanzas that modify the
  environment or set binaries. (ocaml/dune#6527, @rgrinberg)

- Coq native mode is now automatically detected by Dune starting with Coq lang
  0.7. `(mode native)` has been deprecated in favour of detection from the
  configuration of Coq. (ocaml/dune#6409, @Alizter)

- Print "Leaving Directory" whenever "Entering Directory" is printed. (ocaml/dune#6149,
  fixes ocaml/dune#138, @cpitclaudel, @rgrinberg)

- Allow `$ dune ocaml dump-dot-merlin` to run in watch mode. Also this command
  shouldn't print "Entering Directory" mesages. (ocaml/dune#6497, @rgrinberg)

- `dune clean` should no longer fail under Windows due to the inability to
  remove the `.lock` file. Also, bring the implementation of the global lock
  under Windows closer to that of Unix. (ocaml/dune#6523, @nojb)

- Remove "Entering Directory" messages for `$ dune install`. (ocaml/dune#6513,
  @rgrinberg)

- Stop passing `-q` flag in `dune coq top`, which allows for `.coqrc` to be
  loaded. (ocaml/dune#6848, fixes ocaml/dune#6847, @Alizter)

- Fix missing dependencies when detecting the kind of C compiler we're using
  (ocaml/dune#6610, fixes ocaml/dune#6415, @emillon)

- Allow `(include_subdirs qualified)` for OCaml projects. (ocaml/dune#6594, fixes ocaml/dune#1084,
  @rgrinberg)

- Accurately determine merlin configuration for all sources selected with
  `copy#` and `copy_files#`. The old heuristic of looking for a module in
  parent directories is removed (ocaml/dune#6594, @rgrinberg)

- Fix inline tests with *js_of_ocaml* and whole program compilation mode
  enabled (ocaml/dune#6645, @hhugo)

- Fix *js_of_ocaml* separate compilation rules when `--enable=effects`
  ,`--enable=use-js-string` or `--toplevel` is used. (ocaml/dune#6714, ocaml/dune#6828, ocaml/dune#6920, @hhugo)

- Fix *js_of_ocaml* separate compilation in presence of linkall (ocaml/dune#6832, ocaml/dune#6916, @hhugo)

- Remove spurious build dir created when running `dune init proj ...` (ocaml/dune#6707,
  fixes ocaml/dune#5429, @gridbugs)

- Allow `--sandbox` to affect `ocamldep` invocations. Previously, they were
  wrongly marked as incompatible (ocaml/dune#6749, @rgrinberg)

- Validate the command line arguments for `$ dune ocaml top-module`. This
  command requires one positional argument (ocaml/dune#6796, fixes ocaml/dune#6793, @rgrinberg)

- Add a `dune cache size` command for displaying the size of the cache (ocaml/dune#6638,
  @Alizter)

- Add 4.14.0 MSVC to CI (ocaml/dune#6917, @jonahbeckford)

- Fix dependency cycle when installing files to the bin section with
  `glob_files` (ocaml/dune#6764, fixes ocaml/dune#6708, @gridbugs)

- Handle "Too many links" errors when using Dune cache on Windows (ocaml/dune#6993, @nojb)
emillon added a commit to emillon/opam-repository that referenced this pull request Feb 17, 2023
…, dune-rpc, dune-rpc-lwt, dune-private-libs, dune-glob, dune-configurator, dune-build-info, dune-action-plugin and chrome-trace (3.7.0)

CHANGES:

- Allow running `$ dune exec` in watch mode (with the `-w` flag). In watch mode,
  `$ dune exec` the executed binary whenever it is recompiled. (ocaml/dune#6966,
  @gridbugs)

- `coqdep` is now called once per theory, instead of one time per Coq
  file. This should significantly speed up some builds, as `coqdep`
  startup time is often heavy (ocaml/dune#7048, @Alizter, @ejgallego)

- Add `map_workspace_root` dune-project stanza to allow disabling of
  mapping of workspace root to `/workspace_root`. (ocaml/dune#6988, fixes ocaml/dune#6929,
  @richardlford)

- Fix handling of support files generated by odoc. (ocaml/dune#6913, @jonludlam)

- Fix parsing of OCaml errors that contain code excerpts with `...` in them.
  (ocaml/dune#7008, @rgrinberg)

- Pre-emptively clear screen in watch mode (ocaml/dune#6987, fixes ocaml/dune#6884, @rgrinberg)

- Fix cross compilation configuration when a context with targets is itself a
  host of another context (ocaml/dune#6958, fixes ocaml/dune#6843, @rgrinberg)

- Fix parsing of the `<=` operator in *blang* expressions of `dune` files.
  Previously, the operator would be interpreted as `<`. (ocaml/dune#6928, @tatchi)

- Fix `--trace-file` output. Dune now emits a single *complete* event for every
  executed process. Unterminated *async* events are no longer written. (ocaml/dune#6892,
  @rgrinberg)

- Fix preprocessing with `staged_pps` (ocaml/dune#6748, fixes ocaml/dune#6644, @rgrinberg)

- Use colored output with MDX when Dune colors are enabled.
  (ocaml/dune#6462, @MisterDA)

- Make `dune describe workspace` return consistent dependencies for
  executables and for libraries. By default, compile-time dependencies
  towards PPX-rewriters are from now not taken into account (but
  runtime dependencies always are). Compile-time dependencies towards
  PPX-rewriters can be taken into account by providing the
  `--with-pps` flag. (ocaml/dune#6727, fixes ocaml/dune#6486, @esope)

- Print missing newline after `$ dune exec`. (ocaml/dune#6821, fixes ocaml/dune#6700, @rgrinberg,
  @Alizter)

- Fix binary corruption when installing or promoting in parallel (ocaml/dune#6669, fixes
  ocaml/dune#6668, @edwintorok)

- Use colored output with GCC and Clang when compiling C stubs. The
  flag `-fdiagnostics-color=always` is added to the `:standard` set of
  flags. (ocaml/dune#4083, @MisterDA)

- Fix the parsing of decimal and hexadecimal escape literals in `dune`,
  `dune-package`, and other dune s-expression based files (ocaml/dune#6710, @shym)

- Report an error if `dune init ...` would create a "dune" file in a location
  which already contains a "dune" directory (ocaml/dune#6705, @gridbugs)

- Fix the parsing of alerts. They will now show up in diagnostics correctly.
  (ocaml/dune#6678, @rginberg)

- Fix the compilation of modules generated at link time when
  `implicit_transitive_deps` is enabled (ocaml/dune#6642, @rgrinberg)

- Allow `$ dune utop` to load libraries defined in data only directories
  defined using `(subdir ..)` (ocaml/dune#6631, @rgrinberg)

- Format dune files when they are named `dune-file`. This occurs when we enable
  the alternative file names project option. (ocaml/dune#6566, @rgrinberg)

- Move `$ dune ocaml-merlin -dump-config=$dir` to `$ dune ocaml merlin
  dump-config $dir`. (ocaml/dune#6547, @rgrinberg)

- Allow compilation rules to be impacted by `(env ..)` stanzas that modify the
  environment or set binaries. (ocaml/dune#6527, @rgrinberg)

- Coq native mode is now automatically detected by Dune starting with Coq lang
  0.7. `(mode native)` has been deprecated in favour of detection from the
  configuration of Coq. (ocaml/dune#6409, @Alizter)

- Print "Leaving Directory" whenever "Entering Directory" is printed. (ocaml/dune#6419,
  fixes ocaml/dune#138, @cpitclaudel, @rgrinberg)

- Allow `$ dune ocaml dump-dot-merlin` to run in watch mode. Also this command
  shouldn't print "Entering Directory" mesages. (ocaml/dune#6497, @rgrinberg)

- `dune clean` should no longer fail under Windows due to the inability to
  remove the `.lock` file. Also, bring the implementation of the global lock
  under Windows closer to that of Unix. (ocaml/dune#6523, @nojb)

- Remove "Entering Directory" messages for `$ dune install`. (ocaml/dune#6513,
  @rgrinberg)

- Stop passing `-q` flag in `dune coq top`, which allows for `.coqrc` to be
  loaded. (ocaml/dune#6848, fixes ocaml/dune#6847, @Alizter)

- Fix missing dependencies when detecting the kind of C compiler we're using
  (ocaml/dune#6610, fixes ocaml/dune#6415, @emillon)

- Allow `(include_subdirs qualified)` for OCaml projects. (ocaml/dune#6594, fixes ocaml/dune#1084,
  @rgrinberg)

- Accurately determine merlin configuration for all sources selected with
  `copy#` and `copy_files#`. The old heuristic of looking for a module in
  parent directories is removed (ocaml/dune#6594, @rgrinberg)

- Fix inline tests with *js_of_ocaml* and whole program compilation mode
  enabled (ocaml/dune#6645, @hhugo)

- Fix *js_of_ocaml* separate compilation rules when `--enable=effects`
  ,`--enable=use-js-string` or `--toplevel` is used. (ocaml/dune#6714, ocaml/dune#6828, ocaml/dune#6920, @hhugo)

- Fix *js_of_ocaml* separate compilation in presence of linkall (ocaml/dune#6832, ocaml/dune#6916, @hhugo)

- Remove spurious build dir created when running `dune init proj ...` (ocaml/dune#6707,
  fixes ocaml/dune#5429, @gridbugs)

- Allow `--sandbox` to affect `ocamldep` invocations. Previously, they were
  wrongly marked as incompatible (ocaml/dune#6749, @rgrinberg)

- Validate the command line arguments for `$ dune ocaml top-module`. This
  command requires one positional argument (ocaml/dune#6796, fixes ocaml/dune#6793, @rgrinberg)

- Add a `dune cache size` command for displaying the size of the cache (ocaml/dune#6638,
  @Alizter)

- Fix dependency cycle when installing files to the bin section with
  `glob_files` (ocaml/dune#6764, fixes ocaml/dune#6708, @gridbugs)

- Handle "Too many links" errors when using Dune cache on Windows (ocaml/dune#6993, @nojb)

- Allow the `cinaps` stanza to set a custom alias. By default, if the alias is
  not set then the cinaps actions will be attached to both `@cinaps` and
  `@runtest` (ocaml/dune#6991, @rgrinberg)

- Add `(using ctypes 0.3)`. When used, paths in `(ctypes)` are interpreted
  relative to where the stanza is defined. (ocaml/dune#6883, fixes ocaml/dune#5325, @emillon)

- Auto-detect `dune-workspace` files as `dune` files in Emacs (ocaml/dune#7061,
  @ilankri)

- Add native support for polling mode on Windows (ocaml/dune#7010, @yams-yams, @nojb)
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2 participants