View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000616 | file | General | public | 2025-01-17 14:46 | 2025-01-25 16:25 |
| Reporter | jamesodhunt | Assigned To | christos | ||
| Priority | normal | Severity | feature | Reproducibility | always |
| Status | feedback | Resolution | open | ||
| Summary | 0000616: Recognise yacc(1) / bison(1) grammar files | ||||
| Description | The `file(1)` command doesn't currently recognise yacc/bison grammar files. The minimal attached patch adds basic support. | ||||
| Steps To Reproduce | Before this patch is applied (current `file(1)` behaviour): ```bash $ file *.y a.y: ASCII text b.y: C source, ASCII text c.y: ASCII text d.y: C source, ASCII text e.y: C source, ASCII text ``` After this patch is applied: ```bash a.y: yacc(1) or bison(1) grammar file, ASCII text b.y: yacc(1) or bison(1) grammar file with C prologue with token declarations with associativity/precedence declarations, ASCII text c.y: yacc(1) or bison(1) grammar file with token declarations, ASCII text d.y: yacc(1) or bison(1) grammar file with C prologue with token declarations, ASCII text e.y: yacc(1) or bison(1) grammar file with C prologue with token declarations with associativity/precedence declarations, ASCII text ``` | ||||
| Tags | No tags attached. | ||||
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0001-magic-Add-detection-for-yacc-bison.patch (2,131 bytes)
From e02107e1b7edfdf23d2f27003daf78a4039068b2 Mon Sep 17 00:00:00 2001
From: "James O. D. Hunt" <jamesodhunt@gmail.com>
Date: Fri, 17 Jan 2025 14:37:46 +0000
Subject: [PATCH] magic: Add detection for yacc / bison
Recognised `yacc(1)` / `bison(1)` `*.y` grammar files.
For information on the grammar file format, see:
```sh
$ info bison grammar
```
> **Note:**
>
> If you are running on Debian, Ubuntu or a derivative,
> you may need to install the `bison(1)` documentation
> package for the above to work:
>
> ```sh
> $ sudo apt -y install bison-doc
> ```
Signed-off-by: James O. D. Hunt <jamesodhunt@gmail.com>
---
magic/Magdir/yacc | 24 ++++++++++++++++++++++++
magic/Makefile.am | 1 +
2 files changed, 25 insertions(+)
create mode 100644 magic/Magdir/yacc
diff --git a/magic/Magdir/yacc b/magic/Magdir/yacc
new file mode 100644
index 00000000..7aaac663
--- /dev/null
+++ b/magic/Magdir/yacc
@@ -0,0 +1,24 @@
+#-------------------------------------------------------------------------------
+# file(1) magic for yacc(1) / bison(1) LALR(1) parser generator source files.
+#
+# For information on the grammar file format, run the `info(1)` command as:
+#
+# ```sh
+# $ info bison grammar
+# ```
+#
+# Note:
+#
+# If you are running on Debian, Ubuntu or a derivative, you may need
+# to install the `bison(1)` documentation package for the above to work:
+#
+# ```sh
+# $ sudo apt -y install bison-doc
+# ```
+#-------------------------------------------------------------------------------
+
+0 regex %%\n yacc(1) or bison(1) grammar file
+!:ext y
+>0 regex %\\{ with C prologue
+>0 regex %token with token declarations
+>0 regex %(left|right|nonassoc|precedence) with associativity/precedence declarations
diff --git a/magic/Makefile.am b/magic/Makefile.am
index e0f90343..3895a215 100644
--- a/magic/Makefile.am
+++ b/magic/Makefile.am
@@ -348,6 +348,7 @@ $(MAGIC_FRAGMENT_DIR)/xenix \
$(MAGIC_FRAGMENT_DIR)/xilinx \
$(MAGIC_FRAGMENT_DIR)/xo65 \
$(MAGIC_FRAGMENT_DIR)/xwindows \
+$(MAGIC_FRAGMENT_DIR)/yacc \
$(MAGIC_FRAGMENT_DIR)/yara \
$(MAGIC_FRAGMENT_DIR)/zfs \
$(MAGIC_FRAGMENT_DIR)/zilog \
--
2.48.1
|
|
|
I think this needs to be made smarter because it currently does not work for most of the yacc files in my try. yacc files for example can start with %{\n and followed with %%\n grammar. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2025-01-17 14:46 | jamesodhunt | New Issue | |
| 2025-01-17 14:46 | jamesodhunt | File Added: 0001-magic-Add-detection-for-yacc-bison.patch | |
| 2025-01-25 16:23 | christos | Assigned To | => christos |
| 2025-01-25 16:23 | christos | Status | new => assigned |
| 2025-01-25 16:25 | christos | Status | assigned => feedback |
| 2025-01-25 16:25 | christos | Note Added: 0004158 |
