9base

revived minimalist port of Plan 9 userland to Unix
git clone git://git.suckless.org/9base
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commit 5673fdd72fae4823ba67e2c216bbfd724bc9e01c
parent c074f6d0c7ad9ee13cfa65900e1789cfe4eb693c
Author: Evan Gates <evan.gates@gmail.com>
Date:   Wed, 17 Aug 2016 11:45:57 -0700

add bclib from plan 9 sources

add post-install and pre-uninstall targets to tools using yacc.mk
mirroring those in std.mk in order to install and uninstall bclib

Diffstat:
awk/Makefile | 4++++
bc/Makefile | 7+++++++
bc/bclib | 246+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
grep/Makefile | 4++++
hoc/Makefile | 4++++
yacc.mk | 6++++--
6 files changed, 269 insertions(+), 2 deletions(-)

diff --git a/awk/Makefile b/awk/Makefile @@ -7,3 +7,7 @@ YFILES = awkgram.y MANFILES = awk.1 include ../yacc.mk + +pre-uninstall: + +post-install: diff --git a/bc/Makefile b/bc/Makefile @@ -10,3 +10,10 @@ include ../yacc.mk # Solaris #LDFLAGS += -dy -lxnet + +pre-uninstall: + rm -f ${DESTDIR}${PREFIX}/lib/bclib + +post-install: + @mkdir -p ${DESTDIR}${PREFIX}/lib + @cp bclib ${DESTDIR}${PREFIX}/lib/ diff --git a/bc/bclib b/bc/bclib @@ -0,0 +1,246 @@ +scale = 50 +define e(x) { + auto a, b, c, d, e, g, w, y, t, r + + r = ibase + ibase = A + + t = scale + scale = t + .434*x + 1 + + w = 0 + if(x<0) { + x = -x + w = 1 + } + y = 0 + while(x>2) { + x /= 2 + y++ + } + + a = 1 + b = 1 + c = b + d = 1 + e = 1 + for(a=1; 1; a++) { + b *= x + c = c*a+b + d *= a + g = c/d + if(g == e) { + g = g/1 + while(y--) { + g *= g + } + scale = t + if(w==1) { + ibase = r + return 1/g + } + ibase = r + return g/1 + } + e = g + } +} + +define l(x) { + auto a, b, c, d, e, f, g, u, s, t, r, z + + r = ibase + ibase = A + if(x <= 0) { + z = 1-10^scale + ibase = r + return z + } + t = scale + + f = 1 + scale += scale(x) - length(x) + 1 + s = scale + while(x > 2) { + s += (length(x)-scale(x))/2 + 1 + if(s>0) { + scale = s + } + x = sqrt(x) + f *= 2 + } + while(x < .5) { + s += (length(x)-scale(x))/2 + 1 + if(s>0) { + scale = s + } + x = sqrt(x) + f *= 2 + } + + scale = t + length(f) - scale(f) + 1 + u = (x-1)/(x+1) + + scale += 1.1*length(t) - 1.1*scale(t) + s = u*u + b = 2*f + c = b + d = 1 + e = 1 + for(a=3; 1; a=a+2){ + b *= s + c = c*a + d*b + d *= a + g = c/d + if(g==e) { + scale = t + ibase = r + return u*c/d + } + e = g + } +} + +define s(x) { + auto a, b, c, s, t, y, p, n, i, r + + r = ibase + ibase = A + t = scale + y = x/.7853 + s = t + length(y) - scale(y) + if(s<t) { + s = t + } + scale = s + p = a(1) + + scale = 0 + if(x>=0) { + n = (x/(2*p)+1)/2 + } + if(x<0) { + n = (x/(2*p)-1)/2 + } + x -= 4*n*p + if(n%2 != 0) { + x = -x + } + + scale = t + length(1.2*t) - scale(1.2*t) + y = -x*x + a = x + b = 1 + s = x + for(i=3; 1; i+=2) { + a *= y + b *= i*(i-1) + c = a/b + if(c==0){ + scale = t + ibase = r + return s/1 + } + s += c + } +} + +define c(x) { + auto t, r + + r = ibase + ibase = A + t = scale + scale = scale+1 + x = s(x + 2*a(1)) + scale = t + ibase = r + return x/1 +} + +define a(x) { + auto a, b, c, d, e, f, g, s, t, r, z + + r = ibase + ibase = A + if(x==0) { + return 0 + } + if(x==1) { + z = .7853981633974483096156608458198757210492923498437764/1 + ibase = r + if(scale<52) { + return z + } + } + t = scale + f = 1 + while(x > .5) { + scale++ + x = -(1 - sqrt(1.+x*x))/x + f *= 2 + } + while(x < -.5) { + scale++ + x = -(1 - sqrt(1.+x*x))/x + f *= 2 + } + s = -x*x + b = f + c = f + d = 1 + e = 1 + for(a=3; 1; a+=2) { + b *= s + c = c*a + d*b + d *= a + g = c/d + if(g==e) { + scale = t + ibase = r + return x*c/d + } + e = g + } +} + +define j(n,x) { + auto a,b,c,d,e,g,i,s,k,t,r + + r = ibase + ibase = A + + t = scale + k = 1.36*x + 1.16*t - n + k = length(k) - scale(k) + if(k>0) { + scale += k + } + + s = -x*x/4 + if(n<0) { + n = -n + x = -x + } + a = 1 + c = 1 + for(i=1; i<=n; i++) { + a *= x + c *= 2*i + } + b = a + d = 1 + e = 1 + for(i=1; 1; i++) { + a *= s + b = b*i*(n+i) + a + c *= i*(n+i) + g = b/c + if(g==e) { + scale = t + ibase = r + return g/1 + } + e = g + } +} diff --git a/grep/Makefile b/grep/Makefile @@ -7,3 +7,7 @@ YFILES = grep.y MANFILES = grep.1 include ../yacc.mk + +pre-uninstall: + +post-install: diff --git a/hoc/Makefile b/hoc/Makefile @@ -7,3 +7,7 @@ YFILES = hoc.y MANFILES = hoc.1 include ../yacc.mk + +pre-uninstall: + +post-install: diff --git a/yacc.mk b/yacc.mk @@ -14,7 +14,9 @@ depend: @echo YACC ${YFILES} @${YACC} -d ${YFILES} -install: ${TARG} +install: install-default post-install + +install-default: ${TARG} @mkdir -p ${DESTDIR}${PREFIX}/bin @cp -f ${TARG} ${DESTDIR}${PREFIX}/bin/ @chmod 755 ${DESTDIR}${PREFIX}/bin/${TARG} @@ -22,7 +24,7 @@ install: ${TARG} @cp -f ${MANFILES} ${DESTDIR}${MANPREFIX}/man1 @chmod 444 ${DESTDIR}${MANPREFIX}/man1/${MANFILES} -uninstall: +uninstall: pre-uninstall rm -f ${DESTDIR}${PREFIX}/bin/${TARG} rm -f ${DESTDIR}${MANPREFIX}/man1/${MANFILES}