Mercurial > octave-nkf
view readline/doc/history.ps @ 2996:9d4e3a9de17e
[project @ 1997-05-22 20:58:07 by jwe]
| author | jwe |
|---|---|
| date | Thu, 22 May 1997 20:59:27 +0000 |
| parents | |
| children |
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%!PS (but not EPSF; comments have been disabled) %DVIPSCommandLine: dvips -D 300 -o history.ps history.dvi %DVIPSParameters: dpi=300, compressed, comments removed %DVIPSSource: TeX output 1997.04.16:1522 /TeXDict 250 dict def TeXDict begin /N{def}def /B{bind def}N /S{exch}N /X{S N}B /TR{translate}N /isls false N /vsize 11 72 mul N /hsize 8.5 72 mul N /landplus90{false}def /@rigin{isls{[0 landplus90{1 -1}{-1 1} ifelse 0 0 0]concat}if 72 Resolution div 72 VResolution div neg scale isls{landplus90{VResolution 72 div vsize mul 0 exch}{Resolution -72 div hsize mul 0}ifelse TR}if Resolution VResolution vsize -72 div 1 add mul TR[matrix currentmatrix{dup dup round sub abs 0.00001 lt{round}if} forall round exch round exch]setmatrix}N /@landscape{/isls true N}B /@manualfeed{statusdict /manualfeed true put}B /@copies{/#copies X}B /FMat[1 0 0 -1 0 0]N /FBB[0 0 0 0]N /nn 0 N /IE 0 N /ctr 0 N /df-tail{ /nn 8 dict N nn begin /FontType 3 N /FontMatrix fntrx N /FontBBox FBB N string /base X array /BitMaps X /BuildChar{CharBuilder}N /Encoding IE N end dup{/foo setfont}2 array copy cvx N load 0 nn put /ctr 0 N[}B /df{ /sf 1 N /fntrx FMat N df-tail}B /dfs{div /sf X /fntrx[sf 0 0 sf neg 0 0] N df-tail}B /E{pop nn dup definefont setfont}B /ch-width{ch-data dup length 5 sub get}B /ch-height{ch-data dup length 4 sub get}B /ch-xoff{ 128 ch-data dup length 3 sub get sub}B /ch-yoff{ch-data dup length 2 sub get 127 sub}B /ch-dx{ch-data dup length 1 sub get}B /ch-image{ch-data dup type /stringtype ne{ctr get /ctr ctr 1 add N}if}B /id 0 N /rw 0 N /rc 0 N /gp 0 N /cp 0 N /G 0 N /sf 0 N /CharBuilder{save 3 1 roll S dup /base get 2 index get S /BitMaps get S get /ch-data X pop /ctr 0 N ch-dx 0 ch-xoff ch-yoff ch-height sub ch-xoff ch-width add ch-yoff setcachedevice ch-width ch-height true[1 0 0 -1 -.1 ch-xoff sub ch-yoff .1 sub]/id ch-image N /rw ch-width 7 add 8 idiv string N /rc 0 N /gp 0 N /cp 0 N{rc 0 ne{rc 1 sub /rc X rw}{G}ifelse}imagemask restore}B /G{{id gp get /gp gp 1 add N dup 18 mod S 18 idiv pl S get exec}loop}B /adv{cp add /cp X}B /chg{rw cp id gp 4 index getinterval putinterval dup gp add /gp X adv}B /nd{/cp 0 N rw exit}B /lsh{rw cp 2 copy get dup 0 eq{pop 1}{ dup 255 eq{pop 254}{dup dup add 255 and S 1 and or}ifelse}ifelse put 1 adv}B /rsh{rw cp 2 copy get dup 0 eq{pop 128}{dup 255 eq{pop 127}{dup 2 idiv S 128 and or}ifelse}ifelse put 1 adv}B /clr{rw cp 2 index string putinterval adv}B /set{rw cp fillstr 0 4 index getinterval putinterval adv}B /fillstr 18 string 0 1 17{2 copy 255 put pop}for N /pl[{adv 1 chg} {adv 1 chg nd}{1 add chg}{1 add chg nd}{adv lsh}{adv lsh nd}{adv rsh}{ adv rsh nd}{1 add adv}{/rc X nd}{1 add set}{1 add clr}{adv 2 chg}{adv 2 chg nd}{pop nd}]dup{bind pop}forall N /D{/cc X dup type /stringtype ne{] }if nn /base get cc ctr put nn /BitMaps get S ctr S sf 1 ne{dup dup length 1 sub dup 2 index S get sf div put}if put /ctr ctr 1 add N}B /I{ cc 1 add D}B /bop{userdict /bop-hook known{bop-hook}if /SI save N @rigin 0 0 moveto /V matrix currentmatrix dup 1 get dup mul exch 0 get dup mul add .99 lt{/QV}{/RV}ifelse load def pop pop}N /eop{SI restore userdict /eop-hook known{eop-hook}if showpage}N /@start{userdict /start-hook known{start-hook}if pop /VResolution X /Resolution X 1000 div /DVImag X /IE 256 array N 0 1 255{IE S 1 string dup 0 3 index put cvn put}for 65781.76 div /vsize X 65781.76 div /hsize X}N /p{show}N /RMat[1 0 0 -1 0 0]N /BDot 260 string N /rulex 0 N /ruley 0 N /v{/ruley X /rulex X V}B /V {}B /RV statusdict begin /product where{pop product dup length 7 ge{0 7 getinterval dup(Display)eq exch 0 4 getinterval(NeXT)eq or}{pop false} ifelse}{false}ifelse end{{gsave TR -.1 .1 TR 1 1 scale rulex ruley false RMat{BDot}imagemask grestore}}{{gsave TR -.1 .1 TR rulex ruley scale 1 1 false RMat{BDot}imagemask grestore}}ifelse B /QV{gsave newpath transform round exch round exch itransform moveto rulex 0 rlineto 0 ruley neg rlineto rulex neg 0 rlineto fill grestore}B /a{moveto}B /delta 0 N /tail {dup /delta X 0 rmoveto}B /M{S p delta add tail}B /b{S p tail}B /c{-4 M} B /d{-3 M}B /e{-2 M}B /f{-1 M}B /g{0 M}B /h{1 M}B /i{2 M}B /j{3 M}B /k{ 4 M}B /w{0 rmoveto}B /l{p -4 w}B /m{p -3 w}B /n{p -2 w}B /o{p -1 w}B /q{ p 1 w}B /r{p 2 w}B /s{p 3 w}B /t{p 4 w}B /x{0 S rmoveto}B /y{3 2 roll p a}B /bos{/SS save N}B /eos{SS restore}B end TeXDict begin 40258431 52099146 1000 300 300 (history.dvi) @start /Fa 1 47 df<127012F8A212F012E005057B840E>46 D E /Fb 1 47 df<1238127C12FCA212F8127006067A8512>46 D E /Fc 25 123 df<EA1FC0EA7FF0EA7078EA2018EA001CA2EA07FC121FEA3C1C127012E0A3 EA707C383FFF80EA0F8F11107E8F14>97 D<12FCA2121CA513F8EA1DFEEA1F07EA1E0300 1C1380EB01C0A6EB0380001E1300EA1F0EEA1DFCEA0CF81217809614>I<EA03F8EA0FFE EA1C0EEA3804EA7000126012E0A412601270EA380EEA1C1EEA0FFCEA03F00F107E8F14> I<137EA2130EA5EA07CEEA0FFEEA1C3EEA301EEA700E12E0A61270EA301EEA383E381FEF C0EA07CF12177F9614>I<EA07E0EA0FF0EA1C38EA301CEA700CEAE00EA2EAFFFEA2EAE0 0012601270EA380EEA1C1EEA0FFCEA03F00F107E8F14>I<13FCEA01FEEA038EEA070413 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Fh(int)20 b Fg(history)p 276 1316 V 20 w(total)p 412 1316 V 22 w(b)n(ytes)j Ff(\(\))120 1379 y Fo(Return)17 b(the)f(n)o(um)o(b)q(er)g(of)g(b)o(ytes)g(that)f(the)h(primary)g (history)g(en)o(tries)h(are)e(using.)23 b(This)17 b(function)120 1441 y(returns)e(the)g(sum)h(of)e(the)i(lengths)f(of)g(all)h(the)g (lines)g(in)g(the)g(history)l(.)0 1686 y Fi(2.3.4)30 b(Mo)n(ving)15 b(Around)h(the)f(History)g(List)62 1827 y Fo(These)h(functions)g(allo)o(w)f(the)g(curren)o(t)h(index)g(in)o(to) f(the)h(history)f(list)h(to)e(b)q(e)i(set)f(or)g(c)o(hanged.)1725 2001 y(F)l(unction)-1899 b Fh(int)20 b Fg(history)p 276 2001 V 20 w(set)p 367 2001 V 21 w(p)r(os)h Ff(\()p Fn(int)15 b(pos)p Ff(\))120 2063 y Fo(Set)g(the)h(p)q(osition)g(in)g(the)f (history)g(list)h(to)f Fj(p)q(os)p Fo(,)g(an)g(absolute)g(index)i(in)o (to)e(the)g(list.)1725 2238 y(F)l(unction)-1899 b Fh(HIST_ENTRY)21 b(*)e Fg(previous)p 540 2238 V 20 w(history)k Ff(\(\))120 2300 y Fo(Bac)o(k)16 b(up)h(the)g(curren)o(t)f(history)h(o\013set)e(to) h(the)h(previous)g(history)g(en)o(try)l(,)f(and)h(return)f(a)g(p)q(oin) o(ter)120 2362 y(to)f(that)f(en)o(try)l(.)20 b(If)15 b(there)g(is)h(no)f(previous)h(en)o(try)l(,)f(return)g(a)g Fn(NULL)g Fo(p)q(oin)o(ter.)1725 2537 y(F)l(unction)-1899 b Fh(HIST_ENTRY)21 b(*)e Fg(next)p 439 2537 V 21 w(history)k Ff(\(\))120 2599 y Fo(Mo)o(v)o(e)c(the)h(curren)o(t)g(history)f (o\013set)g(forw)o(ard)g(to)g(the)h(next)g(history)g(en)o(try)l(,)g (and)g(return)g(the)g(a)120 2661 y(p)q(oin)o(ter)c(to)e(that)h(en)o (try)l(.)k(If)d(there)f(is)h(no)f(next)g(en)o(try)l(,)g(return)g(a)g Fn(NULL)g Fo(p)q(oin)o(ter.)p eop 9 10 bop 0 -58 a Fo(Chapter)15 b(2:)k(Programming)c(with)g(GNU)g (History)1039 b(9)0 183 y Fi(2.3.5)30 b(Searc)n(hing)15 b(the)h(History)f(List)62 320 y Fo(These)e(functions)g(allo)o(w)f (searc)o(hing)h(of)f(the)g(history)g(list)h(for)f(en)o(tries)h(con)o (taining)g(a)f(sp)q(eci\014c)i(string.)19 b(Searc)o(h-)0 382 y(ing)e(ma)o(y)g(b)q(e)g(p)q(erformed)g(b)q(oth)g(forw)o(ard)f(and) h(bac)o(kw)o(ard)f(from)g(the)h(curren)o(t)f(history)h(p)q(osition.)26 b(The)17 b(searc)o(h)0 445 y(ma)o(y)d(b)q(e)i Fj(anc)o(hored)p Fo(,)f(meaning)h(that)f(the)g(string)g(m)o(ust)g(matc)o(h)f(at)h(the)g (b)q(eginning)i(of)e(the)h(history)f(en)o(try)l(.)1725 600 y(F)l(unction)-1899 b Fh(int)20 b Fg(history)p 276 600 18 3 v 20 w(searc)n(h)j Ff(\()p Fn(char)14 b(*string,)g(int)h (direction)p Ff(\))120 662 y Fo(Searc)o(h)k(the)g(history)g(for)f Fj(string)p Fo(,)i(starting)e(at)g(the)h(curren)o(t)g(history)g (o\013set.)30 b(If)19 b Fj(direction)h Fn(<)f Fo(0,)120 724 y(then)14 b(the)f(searc)o(h)g(is)h(through)e(previous)i(en)o (tries,)g(else)g(through)f(subsequen)o(t.)20 b(If)13 b Fj(string)k Fo(is)d(found,)120 786 y(then)f(the)g(curren)o(t)g (history)g(index)i(is)e(set)g(to)f(that)h(history)g(en)o(try)l(,)f(and) i(the)f(v)m(alue)h(returned)f(is)h(the)120 849 y(o\013set)h(in)i(the)f (line)i(of)d(the)h(en)o(try)g(where)g Fj(string)k Fo(w)o(as)c(found.)22 b(Otherwise,)17 b(nothing)f(is)h(c)o(hanged,)120 911 y(and)e(a)g(-1)g(is)h(returned.)1725 1066 y(F)l(unction)-1899 b Fh(int)20 b Fg(history)p 276 1066 V 20 w(searc)n(h)p 452 1066 V 21 w(pre\014x)i Ff(\()p Fn(char)15 b(*string,)f(int)g (direction)p Ff(\))120 1128 y Fo(Searc)o(h)22 b(the)h(history)f(for)f Fj(string)p Fo(,)j(starting)e(at)f(the)i(curren)o(t)f(history)g (o\013set.)40 b(The)22 b(searc)o(h)g(is)120 1190 y(anc)o(hored:)i(matc) o(hing)18 b(lines)h(m)o(ust)d(b)q(egin)j(with)f Fj(string)p Fo(.)26 b(If)17 b Fj(direction)i Fn(<)e Fo(0,)g(then)h(the)f(searc)o(h) g(is)120 1253 y(through)e(previous)h(en)o(tries,)f(else)i(through)d (subsequen)o(t.)21 b(If)16 b Fj(string)j Fo(is)d(found,)f(then)h(the)f (curren)o(t)120 1315 y(history)20 b(index)i(is)e(set)g(to)g(that)f(en)o (try)l(,)i(and)f(the)g(return)h(v)m(alue)g(is)g(0.)34 b(Otherwise,)22 b(nothing)e(is)120 1377 y(c)o(hanged,)15 b(and)h(a)e(-1)h(is)h(returned.)1725 1532 y(F)l(unction)-1899 b Fh(int)20 b Fg(history)p 276 1532 V 20 w(searc)n(h)p 452 1532 V 21 w(p)r(os)h Ff(\()p Fn(char)15 b(*string,)f(int)g (direction,)g(int)h(pos)p Ff(\))120 1594 y Fo(Searc)o(h)d(for)f Fj(string)k Fo(in)d(the)g(history)f(list,)i(starting)e(at)g Fj(p)q(os)p Fo(,)h(an)f(absolute)h(index)h(in)o(to)e(the)h(list.)19 b(If)12 b Fj(di-)120 1656 y(rection)g Fo(is)h(negativ)o(e,)f(the)g (searc)o(h)g(pro)q(ceeds)h(bac)o(kw)o(ard)e(from)g Fj(p)q(os)p Fo(,)i(otherwise)f(forw)o(ard.)17 b(Returns)120 1719 y(the)e(absolute)h(index)g(of)f(the)g(history)h(elemen)o(t)f(where)h Fj(string)j Fo(w)o(as)14 b(found,)h(or)g(-1)g(otherwise.)0 1912 y Fi(2.3.6)30 b(Managing)14 b(the)i(History)f(File)62 2049 y Fo(The)f(History)g(library)h(can)f(read)g(the)g(history)g(from)f (and)i(write)f(it)g(to)f(a)h(\014le.)20 b(This)15 b(section)g(do)q (cumen)o(ts)f(the)0 2111 y(functions)i(for)f(managing)g(a)f(history)i (\014le.)1725 2266 y(F)l(unction)-1899 b Fh(int)20 b Fg(read)p 211 2266 V 20 w(history)i Ff(\()p Fn(char)15 b(*filename)p Ff(\))120 2328 y Fo(Add)i(the)f(con)o(ten)o(ts)g(of)g Fj(\014lename)k Fo(to)c(the)h(history)f(list,)h(a)f(line)i(at)e(a)g (time.)24 b(If)17 b Fj(\014lename)j Fo(is)d Fn(NULL)p Fo(,)120 2391 y(then)f(read)f(from)f(`)p Fn(~/.history)p Fo('.)k(Returns)e(0)e(if)i(successful,)g(or)f(errno)g(if)h(not.)1725 2545 y(F)l(unction)-1899 b Fh(int)20 b Fg(read)p 211 2545 V 20 w(history)p 406 2545 V 20 w(range)i Ff(\()p Fn(char)15 b(*filename,)e(int)i(from,)g(int)f(to)p Ff(\))120 2608 y Fo(Read)j(a)e(range)h(of)f(lines)j(from)d Fj(\014lename)p Fo(,)i(adding)f(them)g(to)f(the)h(history)g(list.)23 b(Start)15 b(reading)i(at)120 2670 y(line)f Fj(from)f Fo(and)g(end)g(at)f Fj(to)p Fo(.)19 b(If)d Fj(from)e Fo(is)h(zero,)f(start)g(at)g(the)h(b)q(eginning.)22 b(If)15 b Fj(to)i Fo(is)e(less)g(than)g Fj(from)p Fo(,)p eop 10 11 bop 0 -58 a Fo(10)1474 b(GNU)15 b(History)g(Library)120 183 y(then)i(read)g(un)o(til)h(the)f(end)g(of)g(the)g(\014le.)25 b(If)17 b Fj(\014lename)k Fo(is)c Fn(NULL)p Fo(,)f(then)i(read)e(from)g (`)p Fn(~/.history)p Fo('.)120 246 y(Returns)g(0)f(if)g(successful,)h (or)f Fn(errno)g Fo(if)g(not.)1725 410 y(F)l(unction)-1899 b Fh(int)20 b Fg(write)p 229 410 18 3 v 22 w(history)i Ff(\()p Fn(char)15 b(*filename)p Ff(\))120 472 y Fo(W)l(rite)20 b(the)g(curren)o(t)f(history)h(to)f Fj(\014lename)p Fo(,)i(o)o(v)o (erwriting)f Fj(\014lename)j Fo(if)d(necessary)l(.)34 b(If)20 b Fj(\014lename)120 534 y Fo(is)d Fn(NULL)p Fo(,)g(then)g (write)g(the)g(history)g(list)h(to)e(`)p Fn(~/.history)p Fo('.)23 b(V)l(alues)18 b(returned)g(are)e(as)h(in)h Fn(read_)120 596 y(history)c(\(\))p Fo(.)1725 760 y(F)l(unction)-1899 b Fh(int)20 b Fg(app)r(end)p 285 760 V 19 w(history)j Ff(\()p Fn(int)14 b(nelements,)g(char)h(*filename)p Ff(\))120 823 y Fo(App)q(end)i(the)e(last)g Fj(nelemen)o(ts)j Fo(of)d(the)g (history)g(list)h(to)f Fj(\014lename)p Fo(.)1725 987 y(F)l(unction)-1899 b Fh(int)20 b Fg(history)p 276 987 V 20 w(truncate)p 507 987 V 21 w(\014le)k Ff(\()p Fn(char)14 b(*filename,)g(int)h(nlines)p Ff(\))120 1049 y Fo(T)l(runcate)g(the)h (history)f(\014le)h Fj(\014lename)p Fo(,)g(lea)o(ving)g(only)g(the)f (last)g Fj(nlines)k Fo(lines.)0 1263 y Fi(2.3.7)30 b(History)15 b(Expansion)62 1401 y Fo(These)h(functions)g(implemen)o(t)g Fn(csh)p Fo(-lik)o(e)g(history)g(expansion.)1725 1565 y(F)l(unction)-1899 b Fh(int)20 b Fg(history)p 276 1565 V 20 w(expand)j Ff(\()p Fn(char)14 b(*string,)g(char)h(**output)p Ff(\))120 1627 y Fo(Expand)20 b Fj(string)p Fo(,)f(placing)i(the)e (result)h(in)o(to)f Fj(output)p Fo(,)h(a)f(p)q(oin)o(ter)h(to)e(a)h (string)h(\(see)f(Section)h(1.1)120 1689 y([History)15 b(In)o(teraction],)f(page)h(1\).)20 b(Returns:)120 1840 y Fn(0)216 b Fo(If)21 b(no)g(expansions)h(to)q(ok)e(place)h(\(or,)g(if) h(the)f(only)g(c)o(hange)g(in)h(the)f(text)f(w)o(as)g(the)360 1902 y(de-slashifying)d(of)e(the)g(history)h(expansion)g(c)o (haracter\);)120 1991 y Fn(1)216 b Fo(if)16 b(expansions)g(did)g(tak)o (e)e(place;)120 2080 y Fn(-1)192 b Fo(if)16 b(there)f(w)o(as)f(an)h (error)g(in)h(expansion;)120 2168 y Fn(2)216 b Fo(if)14 b(the)f(returned)h(line)h(should)f(only)g(b)q(e)f(displa)o(y)o(ed,)i (but)e(not)g(executed,)h(as)f(with)h(the)360 2231 y Fn(:p)h Fo(mo)q(di\014er)h(\(see)f(Section)h(1.1.3)e([Mo)q(di\014ers],)h(page)g (2\).)120 2381 y(If)g(an)h(error)e(o)q(curred)i(in)g(expansion,)f(then) h Fj(output)g Fo(con)o(tains)f(a)g(descriptiv)o(e)i(error)d(message.) 1725 2545 y(F)l(unction)-1899 b Fh(char)20 b(*)f Fg(history)p 347 2545 V 21 w(arg)p 449 2545 V 19 w(extract)24 b Ff(\()p Fn(int)14 b(first,)h(int)g(last,)f(char)h(*string)p Ff(\))120 2608 y Fo(Extract)10 b(a)h(string)g(segmen)o(t)g(consisting)h(of)f(the) g Fj(\014rst)h Fo(through)f Fj(last)h Fo(argumen)o(ts)e(presen)o(t)h (in)h Fj(string)p Fo(.)120 2670 y(Argumen)o(ts)j(are)g(brok)o(en)g(up)g (as)g(in)h(Bash.)p eop 11 12 bop 0 -58 a Fo(Chapter)15 b(2:)k(Programming)c(with)g(GNU)g (History)1017 b(11)1725 183 y(F)l(unction)-1899 b Fh(char)20 b(*)f Fg(get)p 249 183 18 3 v 21 w(history)p 445 183 V 20 w(ev)n(en)n(t)25 b Ff(\()p Fn(char)14 b(*string,)g(int)h(*cindex,) f(int)h(qchar)p Ff(\))120 246 y Fo(Returns)e(the)f(text)f(of)h(the)g (history)g(ev)o(en)o(t)f(b)q(eginning)k(at)c Fj(string)16 b Fn(+)c Fj(*cindex)p Fo(.)20 b Fj(*cindex)c Fo(is)d(mo)q(di\014ed)120 308 y(to)h(p)q(oin)o(t)h(to)f(after)h(the)f(ev)o(en)o(t)h(sp)q (eci\014er.)21 b(A)o(t)15 b(function)g(en)o(try)l(,)f Fj(cindex)20 b Fo(p)q(oin)o(ts)15 b(to)f(the)h(index)h(in)o(to)120 370 y Fj(string)h Fo(where)d(the)f(history)h(ev)o(en)o(t)f(sp)q (eci\014cation)i(b)q(egins.)20 b Fj(qc)o(har)d Fo(is)c(a)g(c)o (haracter)g(that)g(is)h(allo)o(w)o(ed)120 432 y(to)h(end)g(the)h(ev)o (en)o(t)f(sp)q(eci\014cation)i(in)f(addition)g(to)f(the)g(\\normal")g (terminating)g(c)o(haracters.)1725 587 y(F)l(unction)-1899 b Fh(char)20 b(**)f Fg(history)p 373 587 V 21 w(tok)n(enize)25 b Ff(\()p Fn(char)14 b(*string)p Ff(\))120 649 y Fo(Return)k(an)f(arra) o(y)f(of)h(tok)o(ens)f(parsed)i(out)e(of)h Fj(string)p Fo(,)g(m)o(uc)o(h)h(as)e(the)i(shell)g(migh)o(t.)26 b(The)17 b(tok)o(ens)120 711 y(are)c(split)h(on)f(white)g(space)h(and)f(on)g (the)g(c)o(haracters)f Fn(\(\)<>;&|$)p Fo(,)g(and)h(shell)i(quoting)e (con)o(v)o(en)o(tions)120 774 y(are)i(ob)q(ey)o(ed.)0 983 y Fm(2.4)33 b(History)15 b(V)-6 b(ariables)62 1120 y Fo(This)16 b(section)g(describ)q(es)h(the)e(externally)h(visible)i(v) m(ariables)e(exp)q(orted)g(b)o(y)f(the)g(GNU)g(History)g(Library)l(.) 1736 1275 y(V)l(ariable)-1899 b Fh(int)20 b Fg(history)p 276 1275 V 20 w(base)120 1337 y Fo(The)15 b(logical)i(o\013set)d(of)h (the)g(\014rst)g(en)o(try)g(in)h(the)f(history)g(list.)1736 1491 y(V)l(ariable)-1899 b Fh(int)20 b Fg(history)p 276 1491 V 20 w(length)120 1554 y Fo(The)15 b(n)o(um)o(b)q(er)h(of)f(en)o (tries)g(curren)o(tly)h(stored)f(in)h(the)f(history)g(list.)1736 1708 y(V)l(ariable)-1899 b Fh(int)20 b Fg(max)p 208 1708 V 19 w(input)p 360 1708 V 21 w(history)120 1771 y Fo(The)12 b(maxim)o(um)g(n)o(um)o(b)q(er)g(of)f(history)h(en)o(tries.)19 b(This)12 b(m)o(ust)f(b)q(e)h(c)o(hanged)g(using)h Fn(stifle_history) 120 1833 y(\(\))p Fo(.)1736 1987 y(V)l(ariable)-1899 b Fh(char)20 b Fg(history)p 302 1987 V 20 w(expansion)p 569 1987 V 21 w(c)n(har)120 2050 y Fo(The)15 b(c)o(haracter)g(that)f (starts)g(a)h(history)g(ev)o(en)o(t.)20 b(The)15 b(default)h(is)g(`)p Fn(!)p Fo('.)1736 2204 y(V)l(ariable)-1899 b Fh(char)20 b Fg(history)p 302 2204 V 20 w(subst)p 454 2204 V 20 w(c)n(har)120 2266 y Fo(The)13 b(c)o(haracter)e(that)h(in)o(v)o(ok)o (es)g(w)o(ord)g(substitution)h(if)g(found)g(at)e(the)i(start)e(of)h(a)g (line.)21 b(The)12 b(default)120 2329 y(is)k(`)p Fn(^)p Fo('.)1736 2483 y(V)l(ariable)-1899 b Fh(char)20 b Fg(history)p 302 2483 V 20 w(commen)n(t)p 552 2483 V 19 w(c)n(har)120 2545 y Fo(During)12 b(tok)o(enization,)h(if)f(this)h(c)o(haracter)e(is) i(seen)f(as)g(the)g(\014rst)f(c)o(haracter)g(of)h(a)g(w)o(ord,)f(then)i (it)f(and)120 2608 y(all)19 b(subsequen)o(t)g(c)o(haracters)e(up)h(to)g (a)f(newline)j(are)e(ignored,)h(suppressing)g(history)f(expansion)120 2670 y(for)d(the)g(remainder)h(of)f(the)g(line.)21 b(This)16 b(is)g(disabled)h(b)o(y)e(default.)p eop 12 13 bop 0 -58 a Fo(12)1474 b(GNU)15 b(History)g(Library)1736 183 y(V)l(ariable)-1899 b Fh(char)20 b(*)f Fg(history)p 347 183 18 3 v 21 w(no)p 429 183 V 20 w(expand)p 629 183 V 20 w(c)n(hars)120 246 y Fo(The)f(list)g(of)g(c)o(haracters)e (whic)o(h)j(inhibit)h(history)d(expansion)i(if)f(found)g(immediately)h (follo)o(wing)120 308 y Fj(history)p 261 308 14 2 v 16 w(expansion)p 472 308 V 18 w(c)o(har)p Fo(.)g(The)d(default)f(is)h (whitespace)g(and)g(`)p Fn(=)p Fo('.)1736 469 y(V)l(ariable)-1899 b Fh(char)20 b(*)f Fg(history)p 347 469 18 3 v 21 w(searc)n(h)p 524 469 V 20 w(delimiter)p 768 469 V 23 w(c)n(hars)120 532 y Fo(The)d(list)g(of)f(additional)i(c)o(haracters)d(whic)o(h)i(can) g(delimit)h(a)e(history)g(searc)o(h)h(string,)f(in)h(addition)120 594 y(to)f(whitespace,)g(`)p Fn(:)p Fo(')f(and)i(`)p Fn(?)p Fo(')e(in)i(the)f(case)h(of)e(a)h(substring)h(searc)o(h.)k(The) 15 b(default)h(is)g(empt)o(y)l(.)1736 755 y(V)l(ariable)-1899 b Fh(int)20 b Fg(history)p 276 755 V 20 w(quotes)p 458 755 V 21 w(inhibit)p 642 755 V 23 w(expansion)120 818 y Fo(If)e(non-zero,)f(single-quoted)i(w)o(ords)e(are)g(not)g(scanned)h (for)e(the)i(history)f(expansion)h(c)o(haracter.)120 880 y(The)d(default)h(v)m(alue)h(is)e(0.)1736 1041 y(V)l(ariable)-1899 b Fh(Function)20 b(*)g Fg(history)p 452 1041 V 20 w(inhibit)p 635 1041 V 23 w(expansion)p 905 1041 V 21 w(function)120 1104 y Fo(This)f(should)h(b)q(e)f(set)f(to)g(the)h(address)f(of)g(a)h (function)g(that)f(tak)o(es)f(t)o(w)o(o)h(argumen)o(ts:)25 b(a)19 b Fn(char)14 b(*)120 1166 y Fo(\()p Fj(string)t Fo(\))c(and)i(an)f(in)o(teger)g(index)h(in)o(to)f(that)g(string)g(\()p Fj(i)r Fo(\).)19 b(It)11 b(should)h(return)f(a)g(non-zero)g(v)m(alue)h (if)g(the)120 1228 y(history)17 b(expansion)h(starting)e(at)h Fj(string[i])h Fo(should)g(not)f(b)q(e)h(p)q(erformed;)f(zero)g(if)h (the)f(expansion)120 1290 y(should)i(b)q(e)f(done.)28 b(It)18 b(is)g(in)o(tended)h(for)e(use)h(b)o(y)g(applications)h(lik)o (e)g(Bash)f(that)f(use)h(the)g(history)120 1353 y(expansion)e(c)o (haracter)f(for)f(additional)j(purp)q(oses.)j(By)c(default,)f(this)h(v) m(ariable)g(is)g(set)f(to)f(NULL.)0 1576 y Fm(2.5)33 b(History)15 b(Programming)h(Example)62 1713 y Fo(The)g(follo)o(wing)g (program)e(demonstrates)g(simple)j(use)e(of)g(the)g(GNU)g(History)g (Library)l(.)120 1840 y Fn(main)23 b(\(\))120 1892 y({)168 1944 y(char)g(line[1024],)f(*t;)168 1995 y(int)h(len,)g(done)h(=)g(0;) 168 2099 y(line[0])f(=)g(0;)168 2203 y(using_history)f(\(\);)168 2255 y(while)h(\(!done\))215 2307 y({)263 2359 y(printf)g(\("history$)g ("\);)263 2411 y(fflush)g(\(stdout\);)263 2462 y(t)h(=)g(fgets)f (\(line,)g(sizeof)g(\(line\))g(-)h(1,)f(stdin\);)263 2514 y(if)h(\(t)f(&&)h(*t\))311 2566 y({)359 2618 y(len)f(=)h(strlen)f (\(t\);)359 2670 y(if)g(\(t[len)g(-)h(1])g(==)f('\\n'\))p eop 13 14 bop 0 -58 a Fo(Chapter)15 b(2:)k(Programming)c(with)g(GNU)g (History)1017 b(13)406 183 y Fn(t[len)24 b(-)f(1])h(=)g('\\0';)311 235 y(})263 339 y(if)g(\(!t\))311 391 y(strcpy)f(\(line,)g("quit"\);) 263 495 y(if)h(\(line[0]\))311 546 y({)359 598 y(char)f(*expansion;)359 650 y(int)g(result;)359 754 y(result)g(=)g(history_expand)f(\(line,)h (&expansion\);)359 806 y(if)g(\(result\))406 858 y(fprintf)g(\(stderr,) g("\045s\\n",)g(expansion\);)359 962 y(if)g(\(result)g(<)h(0)g(||)f (result)g(==)h(2\))406 1013 y({)454 1065 y(free)f(\(expansion\);)454 1117 y(continue;)406 1169 y(})359 1273 y(add_history)f(\(expansion\);) 359 1325 y(strncpy)h(\(line,)g(expansion,)f(sizeof)h(\(line\))g(-)h (1\);)359 1377 y(free)f(\(expansion\);)311 1429 y(})263 1532 y(if)h(\(strcmp)f(\(line,)g("quit"\))g(==)g(0\))311 1584 y(done)g(=)h(1;)263 1636 y(else)f(if)h(\(strcmp)f(\(line,)g ("save"\))g(==)h(0\))311 1688 y(write_history)e(\("history_file"\);)263 1740 y(else)h(if)h(\(strcmp)f(\(line,)g("read"\))g(==)h(0\))311 1792 y(read_history)e(\("history_file"\);)263 1844 y(else)h(if)h (\(strcmp)f(\(line,)g("list"\))g(==)h(0\))311 1896 y({)359 1947 y(register)e(HIST_ENTRY)h(**the_list;)359 1999 y(register)f(int)i (i;)359 2103 y(the_list)e(=)i(history_list)e(\(\);)359 2155 y(if)h(\(the_list\))406 2207 y(for)h(\(i)f(=)h(0;)g(the_list[i];)e (i++\))454 2259 y(printf)h(\("\045d:)g(\045s\\n",)g(i)h(+)g (history_base,)e(the_list[i]->line\);)311 2311 y(})263 2363 y(else)h(if)h(\(strncmp)f(\(line,)g("delete",)g(6\))g(==)h(0\))311 2414 y({)359 2466 y(int)f(which;)359 2518 y(if)g(\(\(sscanf)g(\(line)g (+)h(6,)f("\045d",)h(&which\)\))e(==)i(1\))406 2570 y({)454 2622 y(HIST_ENTRY)f(*entry)g(=)g(remove_history)f(\(which\);)p eop 14 15 bop 0 -58 a Fo(14)1474 b(GNU)15 b(History)g(Library)454 183 y Fn(if)24 b(\(!entry\))502 235 y(fprintf)f(\(stderr,)f("No)i(such) f(entry)g(\045d\\n",)g(which\);)454 287 y(else)502 339 y({)550 391 y(free)g(\(entry->line\);)550 443 y(free)g(\(entry\);)502 495 y(})406 546 y(})359 598 y(else)406 650 y({)454 702 y(fprintf)g(\(stderr,)g("non-numeric)f(arg)h(given)h(to)f (`delete'\\n"\);)406 754 y(})311 806 y(})215 858 y(})120 910 y(})p eop 15 16 bop 0 -58 a Fo(App)q(endix)17 b(A:)e(Concept)g(Index)1346 b(15)0 183 y Fk(App)r(endix)13 b(A)41 b(Concept)15 b(Index)0 430 y Fm(A)0 496 y Fe(anc)o(hored)f(searc)o(h)5 b Fd(.)i(.)f(.)g(.)g(.) g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h (.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)18 b Fe(9)0 604 y Fm(E)0 670 y Fe(ev)o(en)o(t)13 b(designators)g Fd(.)6 b(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g (.)23 b Fe(1)1015 430 y Fm(H)1015 496 y Fe(history)15 b(ev)o(en)o(ts)5 b Fd(.)i(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)18 b Fe(1)1015 554 y(history)d(expansion)8 b Fd(.)h(.)d(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)h(.)f(.)g(.)g(.)g(.)21 b Fe(1)1015 612 y(History)14 b(Searc)o(hing)7 b Fd(.)h(.)e(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)20 b Fe(9)p eop 16 17 bop 0 -58 a Fo(16)1474 b(GNU)15 b(History)g(Library)p eop 17 18 bop 0 -58 a Fo(App)q(endix)17 b(B:)e(F)l(unction)h(and)g(V)l (ariable)g(Index)1069 b(17)0 183 y Fk(App)r(endix)13 b(B)41 b(F)-7 b(unction)15 b(and)g(V)-7 b(ariable)14 b(Index)0 430 y Fm(A)0 496 y Fc(add)p 62 496 12 2 v 13 w(history)8 b Fd(.)s(.)e(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)20 b Fe(7)0 554 y Fc(append)p 122 554 V 12 w(history)9 b Fd(.)d(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)24 b Fe(10)0 679 y Fm(C)0 745 y Fc(clear)p 102 745 V 12 w(history)5 b Fd(.)t(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)18 b Fe(7)0 803 y Fc(current)p 142 803 V 11 w(history)9 b Fd(.)d(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)24 b Fe(8)0 928 y Fm(G)0 994 y Fc(get)p 62 994 V 13 w(history)p 215 994 V 11 w(event)9 b Fd(.)d(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)23 b Fe(11)0 1119 y Fm(H)0 1185 y Fc(history)p 142 1185 V 11 w(arg)p 213 1185 V 13 w(extract)8 b Fd(.)t(.)e(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)21 b Fe(10)0 1243 y Fc(history)p 142 1243 V 11 w(base)e Fd(.)6 b(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h (.)f(.)g(.)20 b Fe(11)0 1301 y Fc(history)p 142 1301 V 11 w(comment)p 293 1301 V 12 w(char)g Fd(.)6 b(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)h(.)21 b Fe(11)0 1359 y Fc(history)p 142 1359 V 11 w(expand)10 b Fd(.)c(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) h(.)f(.)g(.)g(.)g(.)24 b Fe(10)0 1418 y Fc(history)p 142 1418 V 11 w(expansion)p 333 1418 V 11 w(char)17 b Fd(.)7 b(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.) f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)19 b Fe(11)0 1476 y Fc(history)p 142 1476 V 11 w(get)8 b Fd(.)d(.)h(.)g(.)g(.)g(.)g(.)h (.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)20 b Fe(8)0 1534 y Fc(history)p 142 1534 V 11 w(get)p 213 1534 V 13 w(history)p 366 1534 V 12 w(state)t Fd(.)t(.)6 b(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)17 b Fe(6)0 1592 y Fc(history)p 142 1592 V 11 w(inhibit)p 293 1592 V 12 w(expansion)p 484 1592 V 10 w(function)k Fd(.)6 b(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h (.)f(.)23 b Fe(12)0 1650 y Fc(history)p 142 1650 V 11 w(is)p 193 1650 V 14 w(stifled)7 b Fd(.)f(.)g(.)g(.)g(.)h(.)f(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)23 b Fe(7)0 1708 y Fc(history)p 142 1708 V 11 w(length)16 b Fd(.)6 b(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.) f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)18 b Fe(11)0 1766 y Fc(history)p 142 1766 V 11 w(list)7 b Fd(.)t(.)g(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)19 b Fe(8)0 1824 y Fc(history)p 142 1824 V 11 w(no)p 193 1824 V 14 w(expand)p 327 1824 V 12 w(chars)f Fd(.)6 b(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)20 b Fe(12)0 1883 y Fc(history)p 142 1883 V 11 w(quotes)p 273 1883 V 12 w(inhibit)p 425 1883 V 12 w(expansion)14 b Fd(.)6 b(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)17 b Fe(12)0 1941 y Fc(history)p 142 1941 V 11 w(search)t Fd(.)t(.)6 b(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)17 b Fe(9)0 1999 y Fc(history)p 142 1999 V 11 w(search)p 273 1999 V 12 w(delimiter)p 465 1999 V 11 w(chars)h Fd(.)6 b(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g (.)g(.)g(.)g(.)20 b Fe(12)0 2057 y Fc(history)p 142 2057 V 11 w(search)p 273 2057 V 12 w(pos)9 b Fd(.)d(.)g(.)g(.)g(.)h(.)f(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)23 b Fe(9)0 2115 y Fc(history)p 142 2115 V 11 w(search)p 273 2115 V 12 w(prefix)6 b Fd(.)t(.)g(.)g(.)h (.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)19 b Fe(9)0 2173 y Fc(history)p 142 2173 V 11 w(set)p 213 2173 V 13 w(history)p 366 2173 V 12 w(state)t Fd(.)t(.)6 b(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)17 b Fe(6)1015 430 y Fc(history)p 1157 430 V 12 w(set)p 1229 430 V 13 w(pos)5 b Fd(.)g(.)h(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)19 b Fe(8)1015 488 y Fc(history)p 1157 488 V 12 w(subst)p 1269 488 V 12 w(char)k Fd(.)6 b(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)25 b Fe(11)1015 546 y Fc(history)p 1157 546 V 12 w(tokenize)9 b Fd(.)s(.)d(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.) f(.)g(.)g(.)g(.)g(.)22 b Fe(11)1015 604 y Fc(history)p 1157 604 V 12 w(total)p 1269 604 V 12 w(bytes)9 b Fd(.)t(.)d(.)g(.)g(.) g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h (.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)22 b Fe(8)1015 662 y Fc(history)p 1157 662 V 12 w(truncate)p 1329 662 V 11 w(file)5 b Fd(.)g(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.) f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)19 b Fe(10)1015 770 y Fm(M)1015 836 y Fc(max)p 1077 836 V 13 w(input)p 1190 836 V 13 w(history)14 b Fd(.)6 b(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)17 b Fe(11)1015 944 y Fm(N)1015 1011 y Fc(next)p 1097 1011 V 13 w(history)7 b Fd(.)s(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)20 b Fe(8)1015 1119 y Fm(P)1015 1185 y Fc(previous)p 1177 1185 V 12 w(history)7 b Fd(.)f(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)23 b Fe(8)1015 1293 y Fm(R)1015 1359 y Fc(read)p 1097 1359 V 13 w(history)7 b Fd(.)s(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)20 b Fe(9)1015 1418 y Fc(read)p 1097 1418 V 13 w(history)p 1250 1418 V 11 w(range)9 b Fd(.)d(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)23 b Fe(9)1015 1476 y Fc(remove)p 1137 1476 V 12 w(history)t Fd(.)t(.)6 b(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)17 b Fe(7)1015 1534 y Fc(replace)p 1157 1534 V 12 w(history)p 1309 1534 V 11 w(entry)6 b Fd(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.) f(.)19 b Fe(7)1015 1642 y Fm(S)1015 1708 y Fc(stifle)p 1137 1708 V 12 w(history)t Fd(.)t(.)6 b(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)17 b Fe(7)1015 1816 y Fm(U)1015 1883 y Fc(unstifle)p 1177 1883 V 12 w(history)7 b Fd(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)23 b Fe(7)1015 1941 y Fc(using)p 1117 1941 V 13 w(history)5 b Fd(.)s(.)h(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)h(.)f(.)g(.)18 b Fe(6)1015 2049 y Fm(W)1015 2115 y Fc(where)p 1117 2115 V 13 w(history)5 b Fd(.)s(.)h(.)g(.)h(.)f(.)g(.)g (.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)h(.)f(.)g(.)18 b Fe(8)1015 2173 y Fc(write)p 1117 2173 V 13 w(history)t Fd(.)s(.)6 b(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)h(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g (.)g(.)h(.)17 b Fe(10)p eop 18 19 bop 0 -58 a Fo(18)1474 b(GNU)15 b(History)g(Library)p eop -1 20 bop 1937 -58 a Fo(i)0 183 y Fk(T)-7 b(able)15 b(of)g(Con)n(ten)n (ts)0 358 y Fm(1)67 b(Using)22 b(History)h(In)n(teractiv)n(ely)15 b Fb(.)e(.)c(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)g(.)g(.) g(.)g(.)g(.)g(.)f(.)h(.)g(.)37 b Fm(1)149 435 y Fo(1.1)45 b(In)o(teractiv)o(e)15 b(History)g(Expansion)9 b Fa(.)g(.)e(.)h(.)f(.)h (.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.) h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)23 b Fo(1)299 498 y(1.1.1)44 b(Ev)o(en)o(t)14 b(Designators)d Fa(.)d(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f (.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.) f(.)h(.)26 b Fo(1)299 560 y(1.1.2)44 b(W)l(ord)15 b(Designators)t Fa(.)7 b(.)g(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.) h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h (.)f(.)h(.)f(.)19 b Fo(2)299 622 y(1.1.3)44 b(Mo)q(di\014ers)15 b Fa(.)8 b(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f (.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.) h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)29 b Fo(2)0 747 y Fm(2)67 b(Programming)23 b(with)g(GNU)f(History)11 b Fb(.)f(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.) g(.)33 b Fm(5)149 825 y Fo(2.1)45 b(In)o(tro)q(duction)16 b(to)f(History)9 b Fa(.)e(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h (.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.) f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)24 b Fo(5)149 887 y(2.2)45 b(History)15 b(Storage)c Fa(.)c(.)h(.)f(.)h(.)f(.)h(.)f(.) h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h (.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.) h(.)f(.)h(.)f(.)h(.)26 b Fo(5)149 949 y(2.3)45 b(History)15 b(F)l(unctions)c Fa(.)e(.)e(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h (.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.) f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)26 b Fo(6)299 1011 y(2.3.1)44 b(Initializing)18 b(History)d(and)h(State)e (Managemen)o(t)g Fa(.)7 b(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h (.)f(.)29 b Fo(6)299 1074 y(2.3.2)44 b(History)15 b(List)h(Managemen)o (t)d Fa(.)7 b(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f (.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)28 b Fo(7)299 1136 y(2.3.3)44 b(Information)15 b(Ab)q(out)g(the)h(History) f(List)c Fa(.)d(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h (.)g(.)f(.)h(.)f(.)h(.)25 b Fo(7)299 1198 y(2.3.4)44 b(Mo)o(ving)15 b(Around)g(the)g(History)g(List)10 b Fa(.)f(.)e(.)h(.)f (.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.) h(.)f(.)25 b Fo(8)299 1260 y(2.3.5)44 b(Searc)o(hing)16 b(the)f(History)g(List)7 b Fa(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h (.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.) f(.)h(.)21 b Fo(9)299 1323 y(2.3.6)44 b(Managing)15 b(the)g(History)g (File)5 b Fa(.)k(.)e(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.) f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)20 b Fo(9)299 1385 y(2.3.7)44 b(History)15 b(Expansion)8 b Fa(.)g(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.) f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f (.)h(.)23 b Fo(10)149 1447 y(2.4)45 b(History)15 b(V)l(ariables)5 b Fa(.)k(.)e(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.) f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h (.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)20 b Fo(11)149 1510 y(2.5)45 b(History)15 b(Programming)f(Example)6 b Fa(.)j(.)e(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.) h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)21 b Fo(12)0 1634 y Fm(App)r(endix)j(A)67 b(Concept)22 b(Index)7 b Fb(.)k(.)f(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.) h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)29 b Fm(15)0 1774 y(App)r(endix)24 b(B)67 b(F)-6 b(unction)25 b(and)e(V)-6 b(ariable)24 b(Index)13 b Fb(.)d(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)35 b Fm(17)p eop -2 21 bop 0 -58 a Fo(ii)1496 b(GNU)15 b(History)g(Library)p eop end userdict /end-hook known{end-hook}if