diff options
| -rw-r--r-- | cppawk-include/iter.h | 69 |
1 files changed, 54 insertions, 15 deletions
diff --git a/cppawk-include/iter.h b/cppawk-include/iter.h index 7246f2c..8703fb1 100644 --- a/cppawk-include/iter.h +++ b/cppawk-include/iter.h @@ -48,12 +48,20 @@ #define dostring(index, chr, str) __dostring(index, chr, str) #define dofields(index, val) __dofields(index, val) -#define loop(...) for (__loop_init(__VA_ARGS__); \ +#define loop(...) __loop_temp(__VA_ARGS__) \ + for (__loop_init(__VA_ARGS__); \ (__loop_test(__VA_ARGS__) || \ __loop_fini(__VA_ARGS__)) && \ __loop_prep(__VA_ARGS__); \ __loop_step(__VA_ARGS__)) +#if __have_let +#define __loop_temp(...) __let(__varexpand(__temp_first, __temp_next, \ + __VA_ARGS__)) +#else +#define __loop_temp(...) +#endif + #define __loop_init(...) __prog(__varexpand(__init_first, __init_next, \ __VA_ARGS__)) #define __loop_test(...) __nd(__varexpand(__test_first, __test_next, \ @@ -78,6 +86,9 @@ __step_ ## args) #define __cross_next(prev, args) prev __cross_first(args) +#define __temp_first(args) __temp_ ## args +#define __temp_next(prev, args) prev __temp_ ## args + #define __init_first(args) __init_ ## args #define __init_next(prev, args) prev, __init_ ## args @@ -93,36 +104,44 @@ #define __step_first(args) __step_ ## args #define __step_next(prev, args) prev, __step_ ## args -#define __init_str(idx, ch, str) idx = 1 -#define __test_str(idx, ch, str) idx <= length(str) -#define __prep_str(idx, ch, str) ch = substr(str, idx, 1) +#define __str_s __g(ch) +#define __str_len __g(idx) +#define __temp_str(idx, ch, str) __str_s, __str_len, +#define __init_str(idx, ch, str) __str_s = (str), __str_len = length(__str_s), idx = 1 +#define __test_str(idx, ch, str) idx <= __str_len +#define __prep_str(idx, ch, str) ch = substr(__str_s, idx, 1) #define __fini_str(idx, ch, str) 1 #define __step_str(idx, ch, str) idx++ +#define __temp_range(idx, from, to) #define __init_range(idx, from, to) idx = (from) #define __test_range(idx, from, to) idx <= (to) #define __prep_range(idx, from, to) 1 #define __fini_range(idx, from, to) 1 #define __step_range(idx, from, to) idx++ +#define __temp_range_step(idx, from, to, step) #define __init_range_step(idx, from, to, step) idx = (from) #define __test_range_step(idx, from, to, step) idx <= (to) #define __prep_range_step(idx, from, to, step) 1 #define __fini_range_step(idx, from, to, step) 1 #define __step_range_step(idx, from, to, step) idx += (step) +#define __temp_from(idx, from) #define __init_from(idx, from) idx = (from) #define __test_from(idx, from) 1 #define __prep_from(idx, from) 1 #define __fini_from(idx, from) 1 #define __step_from(idx, from) idx++ +#define __temp_from_step(idx, from, step) #define __init_from_step(idx, from, step) idx = (from) #define __test_from_step(idx, from, step) 1 #define __prep_from_step(idx, from, step) 1 #define __fini_from_step(idx, from, step) 1 #define __step_from_step(idx, from, step) idx += (step) +#define __temp_first_then(var, first, then) #define __init_first_then(var, first, then) (var = (first)) #define __test_first_then(var, first, then) 1 #define __prep_first_then(var, first, then) 1 @@ -131,46 +150,54 @@ #define for_var(var, expr) first_then(var, expr, expr) +#define __temp_list(iter, var, list) #define __init_list(iter, var, list) iter = (list) #define __test_list(iter, var, list) !__endp(iter) #define __prep_list(iter, var, list) var = __car(iter) #define __fini_list(iter, var, list) 0 #define __step_list(iter, var, list) iter = __cdr(iter) +#define __temp___list(iter, var, list) #define __init___list(iter, var, list) iter = (list) #define __test___list(iter, var, list) !__endp(iter) #define __prep___list(iter, var, list) var = __car(iter) #define __fini___list(iter, var, list) 0 #define __step___list(iter, var, list) iter = __cdr(iter) +#define __temp_fields(var) __g(var), #define __init_fields(var) __g(var) = 1 #define __test_fields(var) __g(var) <= NF #define __prep_fields(var) var = $ __g(var) #define __fini_fields(var) 1 #define __step_fields(var) __g(var)++ +#define __temp_keys(key, array) __g(key), #define __init_keys(key, array) __g(key) = __keys(array) #define __test_keys(key, array) !__endp(__g(key)) #define __prep_keys(key, array) key = __car(__g(key)) #define __fini_keys(key, array) 1 #define __step_keys(key, array) __g(key) = __cdr(__g(key)) +#define __temp___keys(key, array) __g(key), #define __init___keys(key, array) __g(key) = __keys(array) #define __test___keys(key, array) !__endp(__g(key)) #define __prep___keys(key, array) key = __car(__g(key)) #define __fini___keys(key, array) 1 #define __step___keys(key, array) __g(key) = __cdr(__g(key)) +#define __temp_collect(var, expr) #define __init_collect(var, expr) var = __list_begin() #define __test_collect(var, expr) 1 #define __prep_collect(var, expr) var = __list_add(var, expr) #define __fini_collect(var, expr) var = __list_end(var) #define __step_collect(var, expr) 1 +#define __temp_collect_plus(var, expr) #define __init_collect_plus(var, expr) var = __list_begin() #define __test_collect_plus(var, expr) 1 #define __prep_collect_plus(var, expr) var = __list_add(var, expr) #define __fini_collect_plus(var, expr) var = __list_end(__list_add(var, expr)) #define __step_collect_plus(var, expr) 1 +#define __temp_summing(var, expr) #define __init_summing(var, expr) var = 0 #define __test_summing(var, expr) 1 #define __prep_summing(var, expr) var += (expr) @@ -182,6 +209,7 @@ function __loop_max(a, b) return a > b ? a : b } +#define __temp_maximizing(var, expr) #define __init_maximizing(var, expr) var = nil #define __test_maximizing(var, expr) 1 #define __prep_maximizing(var, expr) var = (__null(var) \ @@ -195,6 +223,7 @@ function __loop_min(a, b) return a > b ? b : a } +#define __temp_minimizing(var, expr) #define __init_minimizing(var, expr) var = nil #define __test_minimizing(var, expr) 1 #define __prep_minimizing(var, expr) var = (__null(var) \ @@ -208,15 +237,20 @@ function __loop_argmax(a, arga, b, argb) return a > b ? arga : argb; } -#define __init_argmax(amx, arg, expr) (__g(mx) = 0) || (amx = 0) +#define __am_max __g(amx) +#define __am_min __g(ami) +#define __am_old __g(arg) + +#define __temp_argmax(amx, arg, expr) __am_max, __am_old, +#define __init_argmax(amx, arg, expr) (__am_max = 0) || (amx = 0) #define __test_argmax(amx, arg, expr) 1 -#define __prep_argmax(amx, arg, expr) ((__g(om) = __g(mx)) || 1) && \ - ((__g(mx) = \ - (__null(__g(mx)) \ +#define __prep_argmax(amx, arg, expr) ((__am_old = __am_max) || 1) && \ + ((__am_max = \ + (__null(__am_max) \ ? expr \ - : __loop_max(__g(mx), \ + : __loop_max(__am_max, \ expr))) || 1) && \ - ((__g(om) != __g(mx)) ? amx = arg : 1) + ((__am_old != __am_max) ? amx = arg : 1) #define __fini_argmax(amx, arg, expr) 1 #define __step_argmax(amx, arg, expr) 1 @@ -225,30 +259,34 @@ function __loop_argmin(a, arga, b, argb) return a < b ? arga : argb; } +#define __temp_argmin(ami, arg, expr) __am_min, __am_old, #define __init_argmin(ami, arg, expr) (__g(mi) = 0) || (ami = 0) #define __test_argmin(ami, arg, expr) 1 -#define __prep_argmin(ami, arg, expr) ((__g(om) = __g(mi)) || 1) && \ - ((__g(mi) = \ - (__null(__g(mi)) \ +#define __prep_argmin(ami, arg, expr) ((__am_old = __am_min) || 1) && \ + ((__am_min = \ + (__null(__am_min) \ ? expr \ - : __loop_min(__g(mi), \ + : __loop_min(__am_min, \ expr))) || 1) && \ - ((__g(om) != __g(mi)) ? ami = arg : 1) + ((__am_old != __am_min) ? ami = arg : 1) #define __fini_argmin(ami, arg, expr) 1 #define __step_argmin(ami, arg, expr) 1 +#define __temp_while(expr) #define __init_while(expr) 1 #define __test_while(expr) expr #define __prep_while(expr) 1 #define __fini_while(expr) 1 #define __step_while(expr) 1 +#define __temp_until(expr) #define __init_until(expr) 1 #define __test_until(expr) !(expr) #define __prep_until(expr) 1 #define __fini_until(expr) 1 #define __step_until(expr) 1 +#define __temp_lockstep(...) #define __init_lockstep(...) __prog(__varexpand3(__init_first, __init_next, \ __VA_ARGS__)) #define __test_lockstep(...) __nd(__varexpand3(__test_first, __test_next, \ @@ -260,6 +298,7 @@ function __loop_argmin(a, arga, b, argb) #define __step_lockstep(...) __prog(__varexpand3(__step_first, __step_next, \ __VA_ARGS__)) +#define __temp_if(test, clause) #define __init_if(test, clause) __init_ ## clause #define __test_if(test, clause) !(test) || __test_ ## clause #define __prep_if(test, clause) (test) && __prep_ ## clause |