Example 01_fill.re in docs is broken

[szanni]

Trying to compile the example file 01_fill.re in the docs fails to compile as of version 1.3

Steps to reproduce:

git clone https://github.com/skvadrik/re2c
cd re2c
# optionally: git checkout 1.3
./autogen.sh; ./configure.sh; make
cd doc/manual/fill
../../../re2c -W 01_fill.re -o 01_fill.c
cc 01_fill.c

The last step fails with the following message:

01_fill.re: In function ‘lex’:
01_fill.c:208:4: error: label ‘yy14’ used but not defined
  208 |    goto yy14;
  |    ^~~~

It seems the generator is broken? The example compiles and runs fine when using version 1.2.1

[skvadrik]

Reproduced with HEAD. There was some work on between 1.2.1 and 1.3 on reducing redundant labels, and it probably reduced too much. And the example should be added as a test. I will look into it.

[skvadrik]

I think 147fbd2 fixes it.