>From f1928590f58fe0245fea18256281d4fd3d624894 Mon Sep 17 00:00:00 2001 From: "Eric S. Raymond" Date: Wed, 13 Feb 2019 21:33:41 -0500 Subject: [PATCH] bison.texiL Dates for the invention of Yacc. --- doc/bison.texi | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/doc/bison.texi b/doc/bison.texi index 2d4ea090..20d09e8f 100644 --- a/doc/bison.texi +++ b/doc/bison.texi @@ -13020,11 +13020,10 @@ development of Unix; one of its first uses was to develop the original Portable C Compiler. The same person, Steven C. Johnson, wrote Yacc and the original pcc. -This was so long ago that the exact year of origin is difficult to pin down. -Johnson published @url{https://dx.doi.org/10.1145/512760.512771, A Portable -Compiler: Theory and Practice} in the Proceedings of the 5th ACM POPL -Symposium in 1978; the Yacc program itself is generally said to have been -developed in the early Seventies. +According to the author, Yacc was first invented in 1971 and reached a +form recognizably similar to the C version in 1973. Johnson published address@hidden://dx.doi.org/10.1145/512760.512771, A Portable Compiler: Theory +and Practice} in the Proceedings of the 5th ACM POPL Symposium in 1978. Yacc was not itself originally written in C but in its predecessor language, B. This goes far to explain its odd interface, which exposes a large number -- 2.17.1