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diff --git a/docs/users_guide/ghci.xml b/docs/users_guide/ghci.xml
index 4119836..c0167bf 100644
--- a/docs/users_guide/ghci.xml
+++ b/docs/users_guide/ghci.xml
@@ -34,53 +34,9 @@ Prelude>
There may be a short pause while GHCi loads the prelude and
- standard libraries, after which the prompt is shown. If we follow
- the instructions and type :? for help, we
- get:
-
-
- Commands available from the prompt:
-
- <stmt> evaluate/run <stmt>
- :add <filename> ... add module(s) to the current target set
- :browse [*]<module> display the names defined by <module>
- :cd <dir> change directory to <dir>
- :def <cmd> <expr> define a command :<cmd>
- :edit <file> edit file
- :edit edit last module
- :help, :? display this list of commands
- :info [<name> ...] display information about the given names
- :load <filename> ... load module(s) and their dependents
- :module [+/-] [*]<mod> ... set the context for expression evaluation
- :main [<arguments> ...] run the main function with the given arguments
- :reload reload the current module set
-
- :set <option> ... set options
- :set args <arg> ... set the arguments returned by System.getArgs
- :set prog <progname> set the value returned by System.getProgName
- :set prompt <prompt> set the prompt used in GHCi
- :set editor <cmd> set the command used for :edit
-
- :show modules show the currently loaded modules
- :show bindings show the current bindings made at the prompt
-
- :ctags [<file>] create tags file for Vi (default: "tags")
- :etags [<file>] create tags file for Emacs (default: "TAGS")
- :type <expr> show the type of <expr>
- :kind <type> show the kind of <type>
- :undef <cmd> undefine user-defined command :<cmd>
- :unset <option> ... unset options
- :quit exit GHCi
- :!<command> run the shell command <command>
-
- Options for ':set' and ':unset':
-
- +r revert top-level expressions after each evaluation
- +s print timing/memory stats after each evaluation
- +t print type after evaluation
- -<flags> most GHC command line flags can also be set here
- (eg. -v2, -fglasgow-exts, etc.)
-
+ standard libraries, after which the prompt is shown. As the banner
+ says, you can type :? to see the list of commands
+ available, and a half line description of each of them.
We'll explain most of these commands as we go along. For
Hugs users: many things work the same as in Hugs, so you should be
@@ -263,19 +219,17 @@ Ok, modules loaded: Main.
Prelude> :! ghc -c D.hs
Prelude> :load A
-Skipping D ( D.hs, D.o )
-Compiling C ( C.hs, interpreted )
Compiling B ( B.hs, interpreted )
+Compiling C ( C.hs, interpreted )
Compiling A ( A.hs, interpreted )
Ok, modules loaded: A, B, C, D.
*Main>
- In the messages from the compiler, we see that it skipped D,
- and used the object file D.o. The message
- Skipping module
- indicates that compilation for module
- isn't necessary, because the source and everything it depends on
+ In the messages from the compiler, we see that there is no line
+ for D. This is because
+ it isn't necessary to compile D,
+ because the source and everything it depends on
is unchanged since the last compilation.
At any time you can use the command
@@ -291,7 +245,7 @@ B ( B.hs, interpreted )
A ( A.hs, interpreted )
*Main>
- If we now modify the source of D (or pretend to: using Unix
+ If we now modify the source of D (or pretend to: using the Unix
command touch on the source file is handy for
this), the compiler will no longer be able to use the object file,
because it might be out of date:
@@ -300,9 +254,6 @@ A ( A.hs, interpreted )
*Main> :! touch D.hs
*Main> :reload
Compiling D ( D.hs, interpreted )
-Skipping C ( C.hs, interpreted )
-Skipping B ( B.hs, interpreted )
-Skipping A ( A.hs, interpreted )
Ok, modules loaded: A, B, C, D.
*Main>
@@ -318,8 +269,8 @@ Ok, modules loaded: A, B, C, D.
*Main> :! ghc -c C.hs
*Main> :load A
Compiling D ( D.hs, interpreted )
-Compiling C ( C.hs, interpreted )
Compiling B ( B.hs, interpreted )
+Compiling C ( C.hs, interpreted )
Compiling A ( A.hs, interpreted )
Ok, modules loaded: A, B, C, D.
@@ -342,8 +293,6 @@ Ok, modules loaded: A, B, C, D.
*Main> :load A
-Skipping D ( D.hs, D.o )
-Skipping C ( C.hs, C.o )
Compiling B ( B.hs, interpreted )
Compiling A ( A.hs, interpreted )
Ok, modules loaded: A, B, C, D.
@@ -354,7 +303,7 @@ Ok, modules loaded: A, B, C, D.
when working on a large program is to occasionally run
ghc ––make to compile the whole project (say
before you go for lunch :-), then continue working in the
- interpreter. As you modify code, the new modules will be
+ interpreter. As you modify code, the changed modules will be
interpreted, but the rest of the project will remain
compiled.
@@ -615,7 +564,7 @@ Prelude IO>
Hint: GHCi will tab-complete names that are in scope; for
example, if you run GHCi and type J<tab>
- then GHCi will expand it to Just .
+ then GHCi will expand it to “Just ”.
@@ -766,7 +715,7 @@ it <- e
At the GHCi prompt, or with GHC if the
- -fextended-default-rules flag is given,
+ -XExtendedDefaultRules flag is given,
the following additional differences apply:
@@ -815,8 +764,8 @@ def = toEnum 0
instance that returns IO a.
However, it is only able to return
undefined
- (the reason for the instance having this type is to not require
- extensions to the class system), so if the type defaults to
+ (the reason for the instance having this type is so that printf
+ doesn't require extensions to the class system), so if the type defaults to
Integer then ghci gives an error when running a
printf.
@@ -839,7 +788,7 @@ def = toEnum 0
The debugger provides the following:
- The abilty to set a breakpoint on a
+ The ability to set a breakpoint on a
function definition or expression in the program. When the function
is called, or the expression evaluated, GHCi suspends
execution and returns to the prompt, where you can inspect the
@@ -1068,7 +1017,7 @@ right :: [a]
The execution continued at the point it previously stopped, and has
now stopped at the breakpoint for a second time.
-
+
Setting breakpoints
Breakpoints can be set in various ways. Perhaps the easiest way to
@@ -1131,7 +1080,7 @@ right :: [a]
Listing and deleting breakpoints
The list of breakpoints currently enabled can be displayed using
- :show breaks:
+ :show breaks:
*Main> :show breaks
[0] Main qsort.hs:1:11-12
@@ -1539,7 +1488,7 @@ Just 20
Implicit parameters (see ) are only available
- at the scope of a breakpoint if there is a explicit type signature.
+ at the scope of a breakpoint if there is an explicit type signature.
@@ -1567,9 +1516,7 @@ $ ghci Main.hs
Most of the command-line options accepted by GHC (see ) also make sense in interactive mode. The ones
- that don't make sense are mostly obvious; for example, GHCi
- doesn't generate interface files, so options related to interface
- file generation won't have any effect.
+ that don't make sense are mostly obvious.
Packages
@@ -1585,12 +1532,7 @@ $ ghci Main.hs
$ ghci -package readline
- ___ ___ _
- / _ \ /\ /\/ __(_)
- / /_\// /_/ / / | | GHC Interactive, version 6.6, for Haskell 98.
-/ /_\\/ __ / /___| | http://www.haskell.org/ghc/
-\____/\/ /_/\____/|_| Type :? for help.
-
+GHCi, version 6.8.1: http://www.haskell.org/ghc/ :? for help
Loading package base ... linking ... done.
Loading package readline-1.0 ... linking ... done.
Prelude>
@@ -1762,16 +1704,6 @@ $ ghci -lm
- :continue
- :continue
-
- Continue the current evaluation, when stopped at a
- breakpoint.
-
-
-
-
-
:cmd expr
:cmd
@@ -1786,6 +1718,16 @@ $ ghci -lm
+ :continue
+ :continue
+
+ Continue the current evaluation, when stopped at a
+ breakpoint.
+
+
+
+
+
:ctags filename
:etags filename
:etags
@@ -1795,7 +1737,8 @@ $ ghci -lm
Generates a “tags” file for Vi-style editors
- (:ctags) or Emacs-style editors (etags). If
+ (:ctags) or
+ Emacs-style editors (:etags). If
no filename is specified, the defaulit tags or
TAGS is
used, respectively. Tags for all the functions, constructors and
@@ -1903,6 +1846,15 @@ Prelude> :. cmds.ghci
+ :etags
+
+
+ See :ctags.
+
+
+
+
+
:force identifier ...
:force
@@ -2039,7 +1991,7 @@ Prelude> :. cmds.ghci
However, we cannot simply pass the arguments to the
main function while we are testing in ghci,
as the main function doesn't take its
- directly.
+ arguments directly.
@@ -2084,7 +2036,7 @@ Prelude> :main foo bar
Prints a value without forcing its evaluation.
:print may be used on values whose types are
- unkonwn or partially known, which might be the case for local
+ unknown or partially known, which might be the case for local
variables with polymorphic types at a breakpoint. While inspecting
the runtime value, :print attempts to
reconstruct the type of the value, and will elaborate the type in
@@ -2104,7 +2056,7 @@ Prelude> :main foo bar
:quit
- Quits GHCi. You can also quit by typing a control-D
+ Quits GHCi. You can also quit by typing control-D
at the prompt.
@@ -2249,7 +2201,7 @@ Prelude> :main foo bar
:show modules
- Show the list of modules currently load.
+ Show the list of modules currently loaded.
@@ -2360,7 +2312,7 @@ Prelude> :main foo bar
The :set command sets two types of
options: GHCi options, which begin with
- ‘+” and “command-line”
+ ‘+’, and “command-line”
options, which begin with ‘-’.
NOTE: at the moment, the :set command
@@ -2472,9 +2424,10 @@ Prelude> :set -fno-glasgow-exts
startupfiles, GHCi
- When it starts, GHCi always reads and executes commands from
- $HOME/.ghci, followed by
- ./.ghci.
+ When it starts, unless the -ignore-dot-ghci
+ flag is given, GHCi reads and executes commands from
+ ./.ghci, followed by
+ $HOME/.ghci.
The .ghci in your home directory is
most useful for turning on favourite options (eg. :set
@@ -2483,7 +2436,7 @@ Prelude> :set -fno-glasgow-exts
project is a useful way to set certain project-wide options so you
don't have to type them everytime you start GHCi: eg. if your
project uses GHC extensions and CPP, and has source files in three
- subdirectories A B and C, you might put the following lines in
+ subdirectories A, B and C, you might put the following lines in
.ghci:
@@ -2631,7 +2584,7 @@ Prelude> :set -fno-glasgow-exts
I can't use Control-C to interrupt computations in
GHCi on Windows.
- See
+ See .